Bel Fuse (BELFB) 10-Q31 Jul 242024 Q2 Quarterly reportFinancial data

Company Profile

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
Document And Entity Information - shares	Jun. 30, 2024	Jul. 26, 2024
Document Information [Line Items]
Entity Central Index Key	0000729580
Entity Registrant Name	BEL FUSE INC /NJ
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2024
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	000-11676
Entity Incorporation, State or Country Code	NJ
Entity Tax Identification Number	22-1463699
Entity Address, Address Line One	300 Executive Drive, Suite 300
Entity Address, City or Town	West Orange
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07052
City Area Code	201
Local Phone Number	432-0463
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Common Class B [Member]
Document Information [Line Items]
Title of 12(b) Security	Class B Common Stock ($0.10 par value)
Trading Symbol	BELFB
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		10,432,548
Common Class A [Member]
Document Information [Line Items]
Title of 12(b) Security	Class A Common Stock ($0.10 par value)
Trading Symbol	BELFA
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		2,115,677

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 84,976	$ 89,371
Held to maturity U.S. Treasury securities	58,822	37,548
Accounts receivable, net of allowance of $1,305 and $1,388, respectively	81,153	84,129
Inventories	127,931	136,540
Unbilled receivables	5,906	12,793
Other current assets	17,233	21,097
Total current assets	376,021	381,478
Property, plant and equipment, net	35,082	36,533
Right-of-use assets	21,945	20,481
Equity method investment	9,943	10,282
Intangible assets, net	46,715	49,391
Goodwill, net	25,415	26,642
Deferred income taxes	14,525	11,553
Other assets	35,173	33,119
Total assets	567,604	571,631
Current Liabilities:
Accounts payable	36,415	40,441
Accrued expenses	38,916	54,657
Operating lease liabilities, current	5,992	6,350
Other current liabilities	8,432	9,161
Total current liabilities	89,755	110,609
Long-term Liabilities:
Long-term debt	60,000	60,000
Operating lease liabilities, long-term	16,131	14,212
Liability for uncertain tax positions	17,953	19,823
Minimum pension obligation and unfunded pension liability	20,307	19,876
Deferred income taxes	1,626	1,456
Other long-term liabilities	5,417	5,097
Total liabilities	211,189	231,073
Commitments and contingencies (see Note 15)
Stockholders' Equity:
Preferred stock, no par value, 1,000,000 shares authorized; none issued	0	0
Treasury stock (unrestricted, consisting of 23,923 Class A shares and 232,242 Class B shares)	(14,629)	(454)
Additional paid-in capital	46,054	44,260
Retained earnings	340,462	307,510
Accumulated other comprehensive loss	(16,732)	(12,037)
Total stockholders' equity	356,415	340,558
Total liabilities and stockholders' equity	567,604	571,631
Common Class A [Member]
Stockholders' Equity:
Common stock	212	214
Common Class B [Member]
Stockholders' Equity:
Common stock	1,048	1,065
Related Party [Member]
Current Assets:
Related party note receivable	$ 2,785	$ 2,152

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Accounts receivable, allowance for doubtful accounts	$ 1,305	$ 1,388
Preferred stock, no par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common Class A [Member]
Common stock, par value (in dollars per share)	$ 0.1	$ 0.1
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares outstanding (in shares)	2,120,989	2,141,589
Common stock, treasury shares (in shares)	23,923	23,923
Common Class A [Member] \| Restricted Stock [Member]
Common stock, treasury shares (in shares)	1,072,769	1,072,769
Common Class B [Member]
Common stock, par value (in dollars per share)	$ 0.1	$ 0.1
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares outstanding (in shares)	10,453,469	10,620,260
Common stock, treasury shares (in shares)	232,242	232,242
Common Class B [Member] \| Restricted Stock [Member]
Common stock, treasury shares (in shares)	3,218,307	3,218,307

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net sales	$ 133,205	$ 168,777	$ 261,295	$ 341,121
Cost of sales	79,809	113,240	159,821	231,920
Gross profit	53,396	55,537	101,474	109,201
Research and development costs	5,994	6,006	11,209	11,229
Selling, general and administrative expenses	24,141	25,135	49,085	50,432
Restructuring charges	638	709	703	4,215
Gain on sale of property	0	(3,672)	0	(3,672)
Income from operations	22,623	27,359	40,477	46,997
Gain on sale of Czech Republic business	0	1,115	0	1,115
Interest expense	(415)	(908)	(849)	(1,890)
Interest income	1,146	0	2,261	0
Other (expense)/income, net	(471)	(270)	1,346	(190)
Earnings before provision for income taxes	22,883	27,296	43,235	46,032
Provision for (benefit from) income taxes	4,077	(479)	8,555	3,685
Net earnings available to common stockholders	18,806	27,775	34,680	42,347
Common Class A [Member]
Net earnings available to common stockholders	$ 3,028	$ 4,458	$ 5,573	$ 6,790
Net earnings per common share:
Net earnings per common share - basic and diluted (in dollars per share)	$ 1.43	$ 2.08	$ 2.61	$ 3.17
Weighted-average number of shares outstanding:
Weighted-average number of shares outstanding - basic and diluted (in shares)	2,124	2,142	2,131	2,142
Common Class B [Member]
Net earnings available to common stockholders	$ 15,778	$ 23,317	$ 29,107	$ 35,557
Net earnings per common share:
Net earnings per common share - basic and diluted (in dollars per share)	$ 1.5	$ 2.19	$ 2.76	$ 3.34
Weighted-average number of shares outstanding:
Weighted-average number of shares outstanding - basic and diluted (in shares)	10,492	10,634	10,551	10,636

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net earnings available to common stockholders	$ 18,806	$ 27,775	$ 34,680	$ 42,347
Other comprehensive loss:
Currency translation adjustment, net of taxes of $0, ($105), $26, and ($96), respectively	(999)	(2,231)	(4,775)	(233)
Unrealized (losses) gains on interest rate swap cash flow hedge, net of taxes of $0 in all periods presented	(291)	789	49	(105)
Unrealized holding gains on marketable securities, net of taxes of $0 in all periods presented	0	0	1	1
Change in unfunded SERP liability, net of taxes of ($4), ($4), ($9), and ($8), respectively	15	14	30	27
Other comprehensive loss	(1,275)	(1,428)	(4,695)	(310)
Comprehensive income	$ 17,531	$ 26,347	$ 29,985	$ 42,037

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Foreign currency translation adjustment, tax expense	$ 0	$ 26	$ (105)	$ 9	$ 26	$ (96)
Unrealized losses on interest rate swap cash flow hedge, tax	0	0	0	0	0	0
Unrealized holding losses on marketable securities arising during the period, tax	0	0	0	0	0	0
Change in unfunded SERP liability, tax	$ (4)	$ (4)	$ (4)	$ (4)	$ (9)	$ (8)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Class A [Member] Retained Earnings [Member]	Common Class A [Member] AOCI Attributable to Parent [Member]	Common Class A [Member] Common Stock, Common Class A [Member]	Common Class A [Member] Common Stock, Common Class B [Member]	Common Class A [Member] Treasury Stock, Common [Member]	Common Class A [Member] Additional Paid-in Capital [Member]	Common Class A [Member]	Common Class B [Member] Retained Earnings [Member]	Common Class B [Member] AOCI Attributable to Parent [Member]	Common Class B [Member] Common Stock, Common Class A [Member]	Common Class B [Member] Common Stock, Common Class B [Member]	Common Class B [Member] Treasury Stock, Common [Member]	Common Class B [Member] Additional Paid-in Capital [Member]	Common Class B [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Common Stock, Common Class A [Member]	Common Stock, Common Class B [Member]	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Total
Balance at Dec. 31, 2022															$ 237,188	$ (16,546)	$ 214	$ 1,067	$ (349)	$ 40,772	$ 262,346
Balance (in shares) at Dec. 31, 2022																	2,142	10,643
Net earnings															14,572	0	$ 0	$ 0	0	0	14,572
Cash dividends declared on common stock	$ (128)	$ 0	$ 0	$ 0	$ 0	$ 0	$ (128)	$ (747)	$ 0	$ 0	$ 0	$ 0	$ 0	$ (747)
Forfeiture of restricted common stock															0	0	$ 0	$ (1)	0		0
Forfeiture of restricted common stock (in shares)																	0	(10)
Forfeiture of restricted common stock															0	0	$ 0	$ (1)	0		0
Foreign currency translation adjustment, net of taxes															0	1,998	0	0	0	0	1,998
Unrealized holding gains on interest rate swap cash flow hedge, net of taxes															0	(894)	0	0	0	0	(894)
Unrealized holding gains on marketable securities, net of taxes															0	1	0	0	0	0	1
Stock-based compensation expense															0	0	0	0	0	902	902
Change in unfunded SERP liability, net of taxes															0	13	0	0	0	0	13
Net earnings															14,572	0	0	0	0	0	14,572
Forfeiture of restricted common stock															0	0	$ 0	$ 1	0		0
Forfeiture of restricted common stock (in shares)																	0	(10)
Forfeiture of restricted common stock																				(1)
Forfeiture of restricted common stock																				1
Stock-based compensation expense															0	0	$ 0	$ 0	0	902	902
Change in unfunded SERP liability, net of taxes															0	13	0	0	0	0	13
Balance at Mar. 31, 2023															250,885	(15,428)	$ 214	$ 1,066	(349)	41,675	278,063
Balance (in shares) at Mar. 31, 2023																	2,142	10,633
Balance at Dec. 31, 2022															237,188	(16,546)	$ 214	$ 1,067	(349)	40,772	262,346
Balance (in shares) at Dec. 31, 2022																	2,142	10,643
Net earnings							6,790							35,557							42,347
Cash dividends declared on common stock							(257)							(1,490)
Foreign currency translation adjustment, net of taxes																					(233)
Unrealized holding gains on marketable securities, net of taxes																					1
Change in unfunded SERP liability, net of taxes																					27
Net earnings							6,790							35,557							42,347
Change in unfunded SERP liability, net of taxes																					27
Balance at Jun. 30, 2023															277,790	(16,856)	$ 214	$ 1,064	(349)	42,627	304,490
Balance (in shares) at Jun. 30, 2023																	2,142	10,638
Balance at Mar. 31, 2023															250,885	(15,428)	$ 214	$ 1,066	(349)	41,675	278,063
Balance (in shares) at Mar. 31, 2023																	2,142	10,633
Net earnings							4,458							23,317	27,775	0	$ 0	$ 0	0	0	27,775
Cash dividends declared on common stock	(128)	0	0	0	0	0	(128)	(742)	0	0	0	0	0	(742)
Issuance of restricted common stock															0	0	$ 0	$ 1	0	(1)	0
Issuance of restricted common stock (in shares)																	0	10
Forfeiture of restricted common stock															0	0	$ 0	$ (3)	0		0
Forfeiture of restricted common stock (in shares)																	0	(5)
Forfeiture of restricted common stock															0	0	$ 0	$ (3)	0		0
Foreign currency translation adjustment, net of taxes															0	(2,231)	0	0	0	0	(2,231)
Unrealized holding gains on interest rate swap cash flow hedge, net of taxes															0	789	0	0	0	0	789
Unrealized holding gains on marketable securities, net of taxes																					0
Stock-based compensation expense															0	0	0	0	0	950	950
Change in unfunded SERP liability, net of taxes															0	14	0	0	0	0	14
Net earnings							4,458							23,317	27,775	0	0	0	0	0	27,775
Forfeiture of restricted common stock															0	0	$ 0	$ 3	0		0
Forfeiture of restricted common stock (in shares)																	0	(5)
Forfeiture of restricted common stock																				(3)
Forfeiture of restricted common stock																				3
Stock-based compensation expense															0	0	$ 0	$ 0	0	950	950
Change in unfunded SERP liability, net of taxes															0	14	0	0	0	0	14
Balance at Jun. 30, 2023															277,790	(16,856)	$ 214	$ 1,064	(349)	42,627	304,490
Balance (in shares) at Jun. 30, 2023																	2,142	10,638
Balance at Dec. 31, 2023															307,510	(12,037)	$ 214	$ 1,065	(454)	44,260	340,558
Balance (in shares) at Dec. 31, 2023																	2,142	10,620
Net earnings															15,874	0	$ 0	$ 0	0	0	15,874
Cash dividends declared on common stock	(129)	0	0	0	0	0	(129)	(747)	0	0	0	0	0	(747)
Issuance of restricted common stock															0	0	$ 0	$ 6	$ 0	$ (6)	0
Issuance of restricted common stock (in shares)																	0	58
Forfeiture of restricted common stock															0	0	$ 0	$ (6)			0
Forfeiture of restricted common stock (in shares)																	0	0	0	0
Forfeiture of restricted common stock															0	0	$ 0	$ (6)			0
Purchases of common stock															0	0	$ (1)	$ (10)	$ (6,283)		(6,283)
Purchases of common stock (in shares)																	(11)	(98)
Purchases of common stock																				$ 11
Foreign currency translation adjustment, net of taxes															0	(3,776)	$ 0	$ 0	0	0	(3,776)
Unrealized holding gains on interest rate swap cash flow hedge, net of taxes															0	340	0	0	0	0	340
Unrealized holding gains on marketable securities, net of taxes															0	1	0	0	0	0	1
Stock-based compensation expense															0	0	0	0	0	804	804
Change in unfunded SERP liability, net of taxes															0	15	0	0	0	0	15
Net earnings															15,874	0	0	0	$ 0	$ 0	15,874
Forfeiture of restricted common stock															0	0	$ 0	$ 6			0
Forfeiture of restricted common stock (in shares)																	0	0	0	0
Purchases of common stock (in shares)																	11	98
Stock-based compensation expense															0	0	$ 0	$ 0	$ 0	$ 804	804
Change in unfunded SERP liability, net of taxes															0	15	0	0	0	0	15
Balance at Mar. 31, 2024															322,508	(15,457)	$ 213	$ 1,061	(6,737)	45,069	346,657
Balance (in shares) at Mar. 31, 2024																	2,131	10,574
Balance at Dec. 31, 2023															307,510	(12,037)	$ 214	$ 1,065	(454)	44,260	340,558
Balance (in shares) at Dec. 31, 2023																	2,142	10,620
Net earnings							5,573							29,107							34,680
Cash dividends declared on common stock							(256)							(1,472)
Foreign currency translation adjustment, net of taxes																					(4,775)
Unrealized holding gains on marketable securities, net of taxes																					1
Change in unfunded SERP liability, net of taxes																					30
Net earnings							5,573							29,107							34,680
Change in unfunded SERP liability, net of taxes																					30
Balance at Jun. 30, 2024															340,462	(16,732)	$ 212	$ 1,048	(14,629)	46,054	356,415
Balance (in shares) at Jun. 30, 2024																	2,121	10,453
Balance at Mar. 31, 2024															322,508	(15,457)	$ 213	$ 1,061	(6,737)	45,069	346,657
Balance (in shares) at Mar. 31, 2024																	2,131	10,574
Net earnings							3,028							15,778	18,806	0	$ 0	$ 0	0	0	18,806
Cash dividends declared on common stock	$ (127)	$ 0	$ 0	$ 0	$ 0	$ 0	(127)	$ (725)	$ 0	$ 0	$ 0	$ 0	$ 0	(725)
Forfeiture of restricted common stock															0	0	$ 0	$ (1)	0		(1)
Forfeiture of restricted common stock (in shares)																	0	(4)
Forfeiture of restricted common stock															0	0	$ 0	$ (1)	0		(1)
Purchases of common stock															0	0	$ (1)	$ (12)	(7,892)		(7,893)
Purchases of common stock (in shares)																	(10)	117
Purchases of common stock																				12
Foreign currency translation adjustment, net of taxes															0	(999)	$ 0	$ 0	0	0	(999)
Unrealized holding gains on interest rate swap cash flow hedge, net of taxes															0	(291)	0	0	0	0	(291)
Unrealized holding gains on marketable securities, net of taxes																					0
Stock-based compensation expense															0	0	0	0	0	971	971
Change in unfunded SERP liability, net of taxes															0	15	0	0	0	0	15
Net earnings							$ 3,028							$ 15,778	18,806	0	0	0	0	0	18,806
Forfeiture of restricted common stock															0	0	$ 0	$ 1	0		1
Forfeiture of restricted common stock (in shares)																	0	(4)
Forfeiture of restricted common stock																				2
Purchases of common stock (in shares)																	10	(117)
Forfeiture of restricted common stock																				(2)
Stock-based compensation expense															0	0	$ 0	$ 0	0	971	971
Change in unfunded SERP liability, net of taxes															0	15	0	0	0	0	15
Balance at Jun. 30, 2024															$ 340,462	$ (16,732)	$ 212	$ 1,048	$ (14,629)	$ 46,054	$ 356,415
Balance (in shares) at Jun. 30, 2024																	2,121	10,453

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023
Common Class A [Member]
Dividends declared (in dollars per share)	$ 0.06	$ 0.06	$ 0.06	$ 0.06
Common Class B [Member]
Dividends declared (in dollars per share)	$ 0.07	$ 0.07	$ 0.07	$ 0.07
Foreign currency translation adjustment, tax expense	$ 0	$ 26	$ (105)	$ 9
Unrealized losses on interest rate swap cash flow hedge, tax	0	0	0	0
Unrealized holding losses on marketable securities arising during the period, tax	0	0	0	0
Change in unfunded SERP liability, tax	$ (4)	$ (4)	$ (4)	$ (4)

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net earnings	$ 34,680	$ 42,347
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	7,123	6,571
Stock-based compensation	1,775	1,851
Amortization of deferred financing costs	27	33
Deferred tax benefit	(2,930)	(3,128)
Net unrealized (gains)/losses on foreign currency revaluation	(355)	505
Gain on sale of property	0	(3,672)
Gain on sale of Czech Republic business	0	(1,115)
Other, net	652	(1,124)
Changes in operating assets and liabilities:
Accounts receivable	2,805	(236)
Unbilled receivables	6,887	5,018
Inventories	7,972	13,473
Accounts payable	(4,026)	(11,544)
Accrued expenses	(14,147)	2,448
Accrued restructuring costs	(1,553)	2,343
Income taxes payable	4,517	3,856
Other operating assets/liabilities, net	(5,083)	(16,970)
Net cash provided by operating activities	38,344	40,656
Cash flows from investing activities:
Purchases of property, plant and equipment	(4,278)	(7,081)
Purchases of held to maturity and marketable securities	(122,345)	0
Proceeds from held to maturity securities	101,071	0
Payment for equity method investment	0	(9,975)
Investment in related party notes receivable	(633)	0
Proceeds from disposal/sale of property, plant and equipment	229	5,239
Proceeds from sale of business	0	5,198
Net cash used in investing activities	(25,956)	(6,619)
Cash flows from financing activities:
Dividends paid to common stockholders	(1,674)	(1,658)
Repayments under revolving credit line	0	(40,000)
Borrowings under revolving credit line	0	5,000
Purchases of common stock	(14,175)	0
Net cash used in financing activities	(15,849)	(36,658)
Effect of exchange rate changes on cash and cash equivalents	(934)	(2,592)
Net decrease in cash and cash equivalents	(4,395)	(5,213)
Cash and cash equivalents - beginning of period	89,371	70,266
Cash and cash equivalents - end of period	84,976	65,053
Supplementary information:
Income taxes, net of refunds received	8,277	10,358
Interest payments	1,985	2,762
ROU assets obtained in exchange for lease obligations	$ 4,239	$ 5,172

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation and Accounting Policies	6 Months Ended
Note 1 - Basis of Presentation and Accounting Policies	Jun. 30, 2024
Notes to Financial Statements
Basis of Presentation and Significant Accounting Policies [Text Block]	1. BASIS OF PRESENTATION AND ACCOUNTING POLICIES The condensed consolidated balance sheets and statements of operations, comprehensive income, stockholders’ equity and cash flows for the periods presented herein have been prepared by the Company and are unaudited three six June 30, 2024 not 10 December 31, 2023 Certain information and footnote disclosures required under accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted from these condensed consolidated financial statements pursuant to the rules and regulations, including the interim reporting requirements, of the U.S. Securities and Exchange Commission (“SEC”). The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts and the disclosure of contingent amounts in our condensed consolidated financial statements and accompanying notes. Actual results could differ from these estimates. The Company’s significant accounting policies are summarized in Note 1 10 December 31, 2023 no six June 30, 2024 Cash, Cash Equivalents and Investments Cash equivalents include short-term investments in money market funds and certificates of deposit with an original maturity of three $250,000. The Company has held to maturity securities comprised of U.S. Treasury Bills. These investments are classified as held to maturity as the Company has the intent and ability to hold these investments until they mature. The held to maturity securities mature within the next 12 June 30, 2024 Amortized Cost Gross Unrealized Gain Fair Value Held to maturity U.S. Treasury securities $ 58,822 $ 384 $ 59,206 In determining the fair value of the Company's held to maturity U.S. Treasury securities, the Company utilized Level 1 June 30, 2024 Investments We account for non-marketable investments using the equity method of accounting if the investment gives us the ability to exercise significant influence over, but not 20% 50% Equity in earnings of unconsolidated affiliates, in the consolidated statements of operations, reflects our proportionate share of the investee's net income, including any associated affiliate taxes. Our proportionate share of the investee’s other comprehensive income (loss), net of income taxes, is recorded in the consolidated statements of stockholders’ equity and consolidated statements of comprehensive income. In general, the equity investment in our unconsolidated affiliates is equal to our original equity investment plus our share of those entities' undistributed earnings subsequent to our investment. We evaluate our equity method investments for impairment at least annually or whenever events or changes in circumstances indicate, in management’s judgment, that the carrying value of an investment may 2, Investment in Innolectric Where we are unable to exercise significant influence over the investee, or when our investment balance is reduced to zero All amounts included in the tables to these notes to condensed consolidated financial statements, except per share amounts, are in thousands. Recently Adopted Accounting Standards In March 2020, 2020 04, Reference Rate Reform (Topic 848 2020 04" 2020 04 January 2021, 2021 01, 848 December 31, 2022. December 2022, 2022 06, Reference Rate Reform (Topic 848 848 December 31, 2024. January 2023, January 31, 2023. 2020 04 first 2023 not In June 2016, 2016 13, Financial Instruments Credit Losses (Topic 326 2016 13” , January 1, 2023, 2016 13. not Accounting Standards Issued But Not In November 2023, 2023 07, Segment Reporting (Topic 280 not December 15, 2023, December 15, 2024, no In December 2023, 2023 09, Income Taxes (Topic 740 2023 09 5% December 15, 2024, may December 31, 2025 may no

Note 2 - Investment in Innolect

Note 2 - Investment in Innolectric	6 Months Ended
Note 2 - Investment in Innolectric	Jun. 30, 2024
Notes to Financial Statements
Investment [Text Block]	2. INVESTMENT IN INNOLECTRIC On February 1, 2023, one third €8.0 February 2023 February 2023 one third This passive investment creates a strategic alliance that is focused on Electric Vehicles (“EV”) on-board power electronics, and in particular next generation fast-charging technology. With no not three six June 30, 2024 one Related Party Transactions From time to time, the Company provides cash loans to innolectric to fund working capital needs and further business development. During the three six June 30, 2024 €0.2 €0.7 June 30, 2024 December 31, 2023 €2.6 June 30, 2024 €2.0 December 31, 2023 June 30, 2024 December 31, 2023

Note 3 - Divestiture of Subsidi

Note 3 - Divestiture of Subsidiary	6 Months Ended
Note 3 - Divestiture of Subsidiary	Jun. 30, 2024
Notes to Financial Statements
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	3. DIVESTITURE OF SUBSIDIARY On June 1, 2023, The carrying amounts of the major classes of assets and liabilities included as part of the sale were as follows: Total Cash and cash equivalents $ 2,072 Accounts receivable 1,030 Inventories 1,310 Property, plant and equipment 326 Other assets 48 Accounts payable (441 ) Accrued expenses (126 ) Income taxes payable (100 ) Other current liabilities (13 ) Other long-term liabilities (23 ) Total net assets transferred 4,083 Consideration received 5,063 Gain on sale recognized $ 980

Note 4 - Revenue

Note 4 - Revenue	6 Months Ended
Note 4 - Revenue	Jun. 30, 2024
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	4. REVENUE The following table provides information about disaggregated revenue by geographic region and sales channel, and includes a reconciliation of the disaggregated revenue to our reportable segments: Three Months Ended June 30, 2024 Six Months Ended June 30, 2024 Power Solutions and Protection Connectivity Solutions Magnetic Solutions Consolidated Power Solutions and Protection Connectivity Solutions Magnetic Solutions Consolidated By Geographic Region: North America $ 39,197 $ 45,380 $ 7,350 $ 91,927 $ 78,746 $ 89,264 $ 13,473 $ 181,483 Europe 14,610 11,242 1,118 26,970 30,943 20,678 2,334 53,955 Asia 4,744 1,200 8,364 14,308 9,109 2,165 14,583 25,857 $ 58,551 $ 57,822 $ 16,832 $ 133,205 $ 118,798 $ 112,107 $ 30,390 $ 261,295 By Sales Channel: Direct to customer $ 37,572 $ 36,428 $ 11,793 $ 85,793 $ 76,397 $ 70,498 $ 21,579 $ 168,474 Through distribution 20,979 21,394 5,039 47,412 42,401 41,609 8,811 92,821 $ 58,551 $ 57,822 $ 16,832 $ 133,205 $ 118,798 $ 112,107 $ 30,390 $ 261,295 Three Months Ended June 30, 2023 Six Months Ended June 30, 2023 Power Solutions and Protection Connectivity Solutions Magnetic Solutions Consolidated Power Solutions and Protection Connectivity Solutions Magnetic Solutions Consolidated By Geographic Region: North America $ 64,121 $ 44,233 $ 11,345 $ 119,699 $ 126,921 $ 87,245 $ 21,700 $ 235,866 Europe 15,907 9,561 2,666 28,134 29,507 17,962 5,431 52,900 Asia 7,063 1,049 12,832 20,944 13,844 3,032 35,479 52,355 $ 87,091 $ 54,843 $ 26,843 $ 168,777 $ 170,272 $ 108,239 $ 62,610 $ 341,121 By Sales Channel: Direct to customer $ 62,022 $ 35,970 $ 18,268 $ 116,260 $ 121,636 $ 69,694 $ 45,679 $ 237,009 Through distribution 25,069 18,873 8,575 52,517 48,636 38,545 16,931 104,112 $ 87,091 $ 54,843 $ 26,843 $ 168,777 $ 170,272 $ 108,239 $ 62,610 $ 341,121 June 30, 2024 December 31, 2023 June 30, December 31, 2024 2023 Contract assets - current (unbilled receivables) $ 5,906 $ 12,793 Contract liabilities - current (deferred revenue) $ 2,320 $ 3,046 The change in balance of our unbilled receivables from December 31, 2023 June 30, 2024 December 31, 2023 June 30, 2024 , which will be r Transaction Price Allocated to Future Obligations The aggregate amount of transaction price allocated to remaining performance obligations that have not June 30, 2024 one 2025 2026 . 2025, 2026 2026. not June 30, 2024 one

Note 5 - Earnings Per Share

Note 5 - Earnings Per Share	6 Months Ended
Note 5 - Earnings Per Share	Jun. 30, 2024
Notes to Financial Statements
Earnings Per Share [Text Block]	5. EARNINGS PER SHARE The following table sets forth the calculation of basic and diluted net earnings per common share under the two three six June 30, 2024 2023 Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 Numerator: Net earnings $ 18,806 $ 27,775 $ 34,680 $ 42,347 Less dividends declared: Class A 127 128 256 257 Class B 725 742 1,472 1,490 Undistributed earnings $ 17,954 $ 26,905 $ 32,952 $ 40,600 Undistributed earnings allocation: Class A undistributed earnings $ 2,901 $ 4,330 $ 5,317 $ 6,533 Class B undistributed earnings 15,053 22,575 27,635 34,067 Total undistributed earnings $ 17,954 $ 26,905 $ 32,952 $ 40,600 Net earnings allocation: Class A net earnings $ 3,028 $ 4,458 $ 5,573 $ 6,790 Class B net earnings 15,778 23,317 29,107 35,557 Net earnings $ 18,806 $ 27,775 $ 34,680 $ 42,347 Denominator: Weighted-average shares outstanding: Class A 2,124 2,142 2,131 2,142 Class B 10,492 10,634 10,551 10,636 Net earnings per share: Class A $ 1.43 $ 2.08 $ 2.61 $ 3.17 Class B $ 1.50 $ 2.19 $ 2.76 $ 3.34

Note 6 - Fair Value Measurement

Note 6 - Fair Value Measurements	6 Months Ended
Note 6 - Fair Value Measurements	Jun. 30, 2024
Notes to Financial Statements
Fair Value Disclosures [Text Block]	6. FAIR VALUE MEASUREMENTS Fair value is defined as an exit price, representing the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants based upon the best use of the asset or liability at the measurement date. Entities are required to use a fair value hierarchy which maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. There are three may Level 1 Level 2 Level 3 no June 30, 2024 Carrying value Fair value Cash and cash equivalents Other Current Assets Cash $ 61,321 $ 61,321 $ 61,321 $ - Level 1: Money market funds 22,201 22,201 22,201 - Money market funds (Rabbi Trust) 804 804 - - Subtotal 23,005 23,005 22,201 - Level 2: Certificates of deposit and time deposits 4,553 4,868 1,454 3,099 Subtotal 4,553 4,868 1,454 3,099 Total $ 88,879 $ 89,194 $ 84,976 $ 3,099 December 31, 2023 Carrying value Fair value Cash and cash equivalents Other Current Assets Cash $ 57,544 $ 57,544 $ 57,544 $ - Level 1: Money market funds 31,188 31,188 31,188 - Money market funds (Rabbi Trust) 303 303 - 303 Subtotal 31,491 31,491 31,188 303 Level 2: Certificates of deposit and time deposits 3,629 3,926 639 2,990 Subtotal 3,629 3,926 639 2,990 Total $ 92,664 $ 92,961 $ 89,371 $ 3,293 As of June 30, 2024 December 31, 2023 1 June 30, 2024 $0.3 million December 31, 2023 Throughout 2024 2023 $0.5) million June 30, 2024 $0.5 million December 31, 2023 2 The Company is a party to two 10, Derivative Instruments and Hedging Activities $4.0 million June 30, 2024 December 31, 2023 The fair values of our derivative financial instruments and their classifications in our condensed consolidated balance sheets as of June 30, 2024 December 31, 2023 Balance Sheet Classification June 30, 2024 December 31, 2023 Derivative assets: Foreign currency forward contracts: Designated as cash flow hedges Other current assets $ - $ - Non designated as hedging instruments Other current assets - 486 Interest rate swap agreements: Designated as a cash flow hedge Other assets 4,012 3,960 Total derivative assets $ 4,012 $ 4,446 Derivative liabilities: Foreign currency forward contracts: Designated as cash flow hedges Other current liabilities $ 232 $ 5 Not designated as hedging instruments Other current liabilities 292 - Total derivative liabilities $ 524 $ 5 The Company does not 3, no 1, 2 3 six June 30, 2024 or June 30, 2023 . There were no six June 30, 2024 June 30, 2023 There were no financial assets June 30, 2024 December 31, 2023 The Company has other financial instruments, such as cash and cash equivalents, accounts receivable, accounts payable and accrued expenses, which are not The fair value of the Company’s long-term debt is estimated using a discounted cash flow method based on interest rates that are currently available for debt issuances with similar terms and maturities. At June 30, 2024 and December 31, 2023 , the estimated fair value of total debt was $60.0 million at each date, compared to a carrying amount of $60.0 million at each date not June 30, 2024 Nonfinancial assets and liabilities, such as goodwill, indefinite-lived intangible assets, long-lived assets and the net liability related to the put/call options pursuant to the innolectric investment agreement, are accounted for at fair value on a nonrecurring basis. These items are tested for impairment upon the occurrence of a triggering event or in the case of goodwill, on at least an annual basis. Based on the Company's assessment, it was concluded that no six June 30, 2024 June 30, 2023

Note 7 - Inventories

Note 7 - Inventories	6 Months Ended
Note 7 - Inventories	Jun. 30, 2024
Notes to Financial Statements
Inventory Disclosure [Text Block]	7. INVENTORIES The components of inventories are as follows: June 30, December 31, 2024 2023 Raw materials $ 54,903 $ 63,647 Work in progress 44,000 42,038 Finished goods 29,028 30,855 Inventories $ 127,931 $ 136,540

Note 8 - Property, Plant and Eq

Note 8 - Property, Plant and Equipment	6 Months Ended
Note 8 - Property, Plant and Equipment	Jun. 30, 2024
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	8. PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consist of the following: June 30, December 31, 2024 2023 Land $ 117 $ 348 Buildings and improvements 12,945 15,286 Machinery and equipment 98,439 98,527 Construction in progress 1,507 1,567 113,008 115,728 Accumulated depreciation (77,926 ) (79,195 ) Property, plant and equipment, net $ 35,082 $ 36,533 Depreciation expense was $2.3 $2.2 three June 30, 2024 2023 six June 30, 2024 2023 At June 30, 2024 December 31, 2023

Note 9 - Accrued Expenses

Note 9 - Accrued Expenses	6 Months Ended
Note 9 - Accrued Expenses	Jun. 30, 2024
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	9. ACCRUED EXPENSES Accrued expenses consist of the following: June 30, December 31, 2024 2023 Salaries, bonuses and related benefits $ 22,370 $ 33,566 Deferred revenue 2,320 3,046 Accrued restructuring costs 4,054 5,498 Sales commissions 2,377 2,347 Warranty accrual 1,659 1,542 Other 6,136 8,658 $ 38,916 $ 54,657 The change in warranty accrual during the six June 30, 2024 primarily related to repair costs incurred and adjustments to pre-existing warranties. There were no six June 30, 2024 Restructuring Activities: Activity and liability balances related to restructuring costs for the six June 30, 2024 Six Months Ended June 30, 2024 Liability at Cash Payments Liability at December 31, New and Other June 30, 2023 Charges Settlements 2024 Severance costs $ 1,551 $ 703 $ (2,045 ) $ 209 Other restructuring costs 3,947 - (102 ) 3,845 Total $ 5,498 $ 703 $ (2,147 ) $ 4,054 The new charges and ending liability balance noted above for severance costs largely relate to an initiative within our Connectivity segment related to the transition of certain manufacturing from our Glen Rock, Pennsylvania facility to other existing Bel sites. The balances in other restructuring costs in the table above as of December 31, 2023 June 30, 2024 two

Note 10 - Derivative Instrument

Note 10 - Derivative Instruments and Hedging Activities	6 Months Ended
Note 10 - Derivative Instruments and Hedging Activities	Jun. 30, 2024
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	10. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Our primary objective for holding derivative financial instruments is to manage foreign currency exchange rate risk and interest rate risk, when deemed appropriate. We enter into these contracts in the normal course of business to mitigate risks and not Foreign Currency Forward Contracts Under our risk management strategy, we periodically use foreign currency forward contracts to manage our short-term exposures to fluctuations in operational cash flows resulting from changes in foreign currency exchange rates. These cash flow exposures result from portions of our forecasted operating expenses, primarily compensation and related expenses, which are transacted in currencies other than the U.S. dollar, most notably the Chinese renminbi and the Mexican peso. These foreign currency forward contracts generally have maturities of no twelve twelve We held outstanding foreign currency forward contracts with notional amounts of $18.8 $25.8 June 30, 2024 December 31, 2023 Interest Rate Swap Agreements To partially mitigate risks associated with the variable interest rates on the revolver borrowings under the Company's credit agreement (as defined and described in Note 11, Debt , below), in November 2021, two ltinational financial institutions under which we, prior to the January 2023 1.3055% a nd received variable interest of one of $30.0 million and (ii) paid interest at a fixed rate of 1.3180% and received variable interest of one $30.0 “2021 2021 December 31, 2021, January 31, 2022 onthly basis. The 2021 August 31, 2026. January 2023, 2021 January 31, 2023. 2021 of 1.334% and 1.348%, resp ectively, in exchange for the daily SOFR rate plus 10 basis points. The 2021 Fair Values of Derivative Financial Instruments See Note 6, "Fair Value Measurements" June 30, 2024 December 31, 2023 Derivative Financial Instruments in Cash Flow Hedging Relationships The effects of derivative financial instruments designated as cash flow hedges on accumulated other comprehensive loss (“AOCL”) an three six June 30, 2024 2023 Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 Net (losses) gains recognized in AOCL: Foreign currency forward contracts $ (77 ) $ (1,091 ) $ (188 ) $ (1,452 ) Interest rate swap agreements 331 1,351 1,286 943 $ 254 $ 260 $ 1,098 $ (509 ) Net gains (losses) reclassified from AOCL to the consolidated statement of operations: Foreign currency forward contracts $ (83 ) $ (37 ) $ (351 ) $ 114 Interest rate swap agreements 622 562 1,237 1,048 $ 539 $ 525 $ 886 $ 1,162 The losses related to the foreign currency forward contracts are included as a component of currency translation adjustment on the accompanying condensed consolidated statements of comprehensive income for the six June 30, 2024 2023 Derivative Financial Instruments Not Gains recognized on derivative financial instruments not three six June 30, 2024 2023 Three Months Ended Six Months Ended June 30, June 30, Classification in Consolidated Statements of Operations 2024 2023 2024 2023 Foreign currency forward contracts Other (expense)/income, net $ 103 $ 34 262 $ 34 $ 103 $ 34 $ 262 $ 34

Note 11 - Debt

Note 11 - Debt	6 Months Ended
Note 11 - Debt	Jun. 30, 2024
Notes to Financial Statements
Debt Disclosure [Text Block]	11. DEBT The Company has a Credit and Security Agreement with KeyBank National Association (as amended, the "credit agreement" or the "CSA"). The CSA provides a $175 million 5-year senior secured revolving credit facility ("Revolver"), with a sublimit of up to $10 million available for letters of credit and a sublimit of up to $5 million available for swing line loans September 1, 2026. June 30, 2024 December 31, 2023 $60 June 30, 2024 December 31, 2023 three June 30, 2024 2023, six June 30, 2024 June 30, 2023 2021 January 2023, 2021 January 31, 2023 . The interest rate in effect at June 30, 2024 December 31, 2023 June 30, 2024 December 31, 2023 2021 10, "Derivative Instruments and Hedging Activities" June 30, 2024 December 31, 2023 The credit agreement contains customary representations and warranties, covenants and events of default. In addition, the credit agreement contains financial covenants that measure (i) the ratio of the Company’s total funded indebtedness, on a consolidated basis, less the aggregate amount of all unencumbered cash and cash equivalents, to the amount of the Company’s consolidated EBITDA (“Leverage Ratio”) and (ii) the ratio of the amount of the Company’s consolidated EBITDA to the Company’s consolidated fixed charges (“Fixed Charge Coverage Ratio”). If an event of default occurs, the lenders under the credit agreement would be entitled to take various actions, including the acceleration of amounts due thereunder and all actions permitted to be taken by a secured creditor. At June 30, 2024

Note 12 - Income Taxes

Note 12 - Income Taxes	6 Months Ended
Note 12 - Income Taxes	Jun. 30, 2024
Notes to Financial Statements
Income Tax Disclosure [Text Block]	12. INCOME TAXES The Company's estimated taxable income in future periods is not not The Company is no 2020 2017. no 2013 2015 As a result of the expiration of the statutes of limitations for specific jurisdictions, it is reasonably possible that the related unrecognized benefits for tax positions taken regarding previously filed tax returns may June 30, 2024 . $18.0 June 30, 2024 $19.8 December 31, 2023 six June 30, 2024 The Company’s policy is to recognize interest and penalties related to uncertain tax positions as a component of the current provision for income taxes . During the six June 30, 2024 and 2023 , the Company recognized $0.2 million and $0.3 June 30, 2024 December 31, 2023

Note 13 - Retirement, Savings a

Note 13 - Retirement, Savings and Deferred Compensation Plans	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Retirement Benefits [Text Block]	13. RETIREMENT, SAVINGS AND DEFERRED COMPENSATION PLANS The Company maintains the Bel Fuse Inc. Employees’ Savings Plan, a defined contribution plan that is intended to meet the applicable requirements for tax-qualification under sections 401 1986, T three months ended June 30, 2024 2023 amounted to $0.3 million in each period. The expense for the six months ended June 30, 2024 2023 amounted to $0.9 million and $0.7 m illion, respectively. June 30, 2024 271,013 59,080 The Company also maintains a Nonqualified Deferred Compensation Plan (the "DCP"). With certain exceptions, the Company's contributions to the DCP are discretionary and become fully vested by the participants upon reaching age 65. The expense for the three months ended June 30, 2024 2023 amounted to less than $0.1 million during each period. six June 30, 2024 2023 $0 .1 June 30, 2024 December 31, 2023 The Company's subsidiaries in Asia have a retirement fund covering substantially all of their Hong Kong based full-time employees. The expense for the three June 30, 2024 2023 six June 30, 2024 2023 d to $0.2 $0.9 pectively . The Company maintains a SERP, Note 6 The components of SERP expense are as follows: Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 Service cost $ 99 $ 92 $ 198 $ 185 Interest cost 226 221 452 443 Net amortization 20 18 40 35 Net periodic benefit cost $ 345 $ 331 $ 690 $ 663 The service cost component of net benefit cost is presented within cost of sales, research and development costs or selling, general and administrative expense on the accompanying condensed consolidated statements of operations, in accordance with where compensation cost for the related associate is reported. All other components of net benefit cost, including interest cost and net amortization noted above, are presented within other (expense)/income, net in the accompanying condensed consolidated statements of operations. The following amounts are recognized net of tax in accumulated other comprehensive loss: June 30, December 31, 2024 2023 Prior service cost $ 172 $ 212 Net gain (1,336 ) (1,336 ) $ (1,164 ) $ (1,124 )

Note 14 - Accumulated Other Com

Note 14 - Accumulated Other Comprehensive Loss	6 Months Ended
Note 14 - Accumulated Other Comprehensive Loss	Jun. 30, 2024
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	14. ACCUMULATED OTHER COMPREHENSIVE LOSS The components of accumulated other comprehensive loss at June 30, 2024 December 31, 2023 June 30, December 31, 2024 2023 Foreign currency translation adjustment, net of taxes of ($ 302 276 $ (21,198 ) $ (16,423 ) Unrealized gains on interest rate swap cash flow hedge, net of taxes of $ 0 0 4,009 3,960 Unrealized holding gains on marketable securities, net of taxes of ($ 7 7 20 19 Unfunded SERP liability, net of taxes of $ 727 718 437 407 Accumulated other comprehensive loss $ (16,732 ) $ (12,037 ) Changes in accumulated other comprehensive loss by component during the six June 30, 2024 Foreign Currency Unrealized Gains on Unrealized Holding Translation Interest Rate Swap Gains on Unfunded Adjustment Cash Flow Hedge Marketable Securities SERP Liability Total Balance at December 31, 2023 $ (16,423 ) $ 3,960 $ 19 $ 407 $ (12,037 ) Other comprehensive (loss) income before reclassifications (5,126 ) 1,286 1 61 (3,778 ) Amount reclassified from accumulated other comprehensive loss 351 (1,237 ) - (31 ) (a) (917 ) Net current period other comprehensive (loss) income (4,775 ) 49 1 30 (4,695 ) Balance at June 30, 2024 $ (21,198 ) $ 4,009 $ 20 $ 437 $ (16,732 ) (a) This reclassification relates to the amortization of prior service costs and gains/losses associated with the Company's SERP Plan. This expense is reflected in other ( expense)/income,

Note 15 - Commitments and Conti

Note 15 - Commitments and Contingencies	6 Months Ended
Note 15 - Commitments and Contingencies	Jun. 30, 2024
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	15. COMMITMENTS AND CONTINGENCIES Legal Proceedings The Company is party to a number of legal actions and claims, none On June 23, 2021, Bel Power Solutions, Inc. v. Monolithic Power Systems, Inc. 6:21cv00655, July 27, 2023, The Company is evaluating its options for appeal. In connection with the Company's 2014 2004 2006. September 2012, February 2013, October 2, 2014. October 13, 2014, July 18, 2015 December 5, 2016, January 4, 2017. March 2024. July 2024. June 30, 2024 December 31, 2023. June 30, 2024 December 31, 2023 In connection with the Company's 2021 1994. $1.4 million, of which EOS has paid $0.5 million. E 2016 $0.9 March 2021, 7 may As such, no June 30, 2024 . The Company is not

Note 16 - Segments

Note 16 - Segments	6 Months Ended
Note 16 - Segments	Jun. 30, 2024
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	16. SEGMENTS The Company operates in one three three Three Months Ended June 30, 2024 Power Solutions Connectivity Magnetic and Protection Solutions Solutions Corporate Total Revenue $ 58,551 $ 57,822 $ 16,832 $ - $ 133,205 Gross Profit 26,736 22,512 4,442 (294 ) 53,396 Gross Profit % 45.7 % 38.9 % 26.4 % nm 40.1 % Three Months Ended June 30, 2023 Power Solutions Connectivity Magnetic and Protection Solutions Solutions Corporate Total Revenue $ 87,091 $ 54,843 $ 26,843 $ - $ 168,777 Gross Profit 31,124 20,512 6,595 (2,694 ) 55,537 Gross Profit % 35.7 % 37.4 % 24.6 % nm 32.9 % Six Months Ended June 30, 2024 Power Solutions Connectivity Magnetic and Protection Solutions Solutions Corporate Total Revenue $ 118,798 $ 112,107 $ 30,390 $ - $ 261,295 Gross Profit 53,252 42,129 6,616 (523 ) 101,474 Gross Profit % 44.8 % 37.6 % 21.8 % nm 38.8 % Six Months Ended June 30, 2023 Power Solutions Connectivity Magnetic and Protection Solutions Solutions Corporate Total Revenue $ 170,272 $ 108,239 $ 62,610 $ - $ 341,121 Gross Profit 60,804 38,708 14,763 (5,074 ) 109,201 Gross Profit % 35.7 % 35.8 % 23.6 % nm 32.0 %

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended	6 Months Ended
Insider Trading Arrangements	Jun. 30, 2024	Jun. 30, 2024
Insider Trading Arr Line Items
Material Terms of Trading Arrangement [Text Block]		5. Other Information Rule 10b5 1 Trading Arrangements and Non-Rule 10b5 1 Trading Arrangements During the fiscal quarter ended June 30, 2024 none 16a 1 10b5 1 10b5 1 408
Rule 10b5-1 Arrangement Adopted [Flag]	false
Non-Rule 10b5-1 Arrangement Adopted [Flag]	false
Rule 10b5-1 Arrangement Terminated [Flag]	false
Non-Rule 10b5-1 Arrangement Terminated [Flag]	false

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
Significant Accounting Policies (Policies)	Jun. 30, 2024
Accounting Policies [Abstract]
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash, Cash Equivalents and Investments Cash equivalents include short-term investments in money market funds and certificates of deposit with an original maturity of three $250,000. The Company has held to maturity securities comprised of U.S. Treasury Bills. These investments are classified as held to maturity as the Company has the intent and ability to hold these investments until they mature. The held to maturity securities mature within the next 12 June 30, 2024 Amortized Cost Gross Unrealized Gain Fair Value Held to maturity U.S. Treasury securities $ 58,822 $ 384 $ 59,206 In determining the fair value of the Company's held to maturity U.S. Treasury securities, the Company utilized Level 1 June 30, 2024
Investment, Policy [Policy Text Block]	Investments We account for non-marketable investments using the equity method of accounting if the investment gives us the ability to exercise significant influence over, but not 20% 50% Equity in earnings of unconsolidated affiliates, in the consolidated statements of operations, reflects our proportionate share of the investee's net income, including any associated affiliate taxes. Our proportionate share of the investee’s other comprehensive income (loss), net of income taxes, is recorded in the consolidated statements of stockholders’ equity and consolidated statements of comprehensive income. In general, the equity investment in our unconsolidated affiliates is equal to our original equity investment plus our share of those entities' undistributed earnings subsequent to our investment. We evaluate our equity method investments for impairment at least annually or whenever events or changes in circumstances indicate, in management’s judgment, that the carrying value of an investment may 2, Investment in Innolectric Where we are unable to exercise significant influence over the investee, or when our investment balance is reduced to zero All amounts included in the tables to these notes to condensed consolidated financial statements, except per share amounts, are in thousands.
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Standards In March 2020, 2020 04, Reference Rate Reform (Topic 848 2020 04" 2020 04 January 2021, 2021 01, 848 December 31, 2022. December 2022, 2022 06, Reference Rate Reform (Topic 848 848 December 31, 2024. January 2023, January 31, 2023. 2020 04 first 2023 not In June 2016, 2016 13, Financial Instruments Credit Losses (Topic 326 2016 13” , January 1, 2023, 2016 13. not Accounting Standards Issued But Not In November 2023, 2023 07, Segment Reporting (Topic 280 not December 15, 2023, December 15, 2024, no In December 2023, 2023 09, Income Taxes (Topic 740 2023 09 5% December 15, 2024, may December 31, 2025 may no

Note 1 - Basis of Presentatio_2

Note 1 - Basis of Presentation and Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Debt Securities, Held-to-Maturity [Table Text Block]	Amortized Cost Gross Unrealized Gain Fair Value Held to maturity U.S. Treasury securities $ 58,822 $ 384 $ 59,206

Note 3 - Divestiture of Subsi_2

Note 3 - Divestiture of Subsidiary (Tables)	6 Months Ended
Note 3 - Divestiture of Subsidiary (Tables)	Jun. 30, 2024
Notes Tables
Disposal Groups, Including Discontinued Operations [Table Text Block]	Total Cash and cash equivalents $ 2,072 Accounts receivable 1,030 Inventories 1,310 Property, plant and equipment 326 Other assets 48 Accounts payable (441 ) Accrued expenses (126 ) Income taxes payable (100 ) Other current liabilities (13 ) Other long-term liabilities (23 ) Total net assets transferred 4,083 Consideration received 5,063 Gain on sale recognized $ 980

Note 4 - Revenue (Tables)

Note 4 - Revenue (Tables)	6 Months Ended
Note 4 - Revenue (Tables)	Jun. 30, 2024
Notes Tables
Disaggregation of Revenue [Table Text Block]	Three Months Ended June 30, 2024 Six Months Ended June 30, 2024 Power Solutions and Protection Connectivity Solutions Magnetic Solutions Consolidated Power Solutions and Protection Connectivity Solutions Magnetic Solutions Consolidated By Geographic Region: North America $ 39,197 $ 45,380 $ 7,350 $ 91,927 $ 78,746 $ 89,264 $ 13,473 $ 181,483 Europe 14,610 11,242 1,118 26,970 30,943 20,678 2,334 53,955 Asia 4,744 1,200 8,364 14,308 9,109 2,165 14,583 25,857 $ 58,551 $ 57,822 $ 16,832 $ 133,205 $ 118,798 $ 112,107 $ 30,390 $ 261,295 By Sales Channel: Direct to customer $ 37,572 $ 36,428 $ 11,793 $ 85,793 $ 76,397 $ 70,498 $ 21,579 $ 168,474 Through distribution 20,979 21,394 5,039 47,412 42,401 41,609 8,811 92,821 $ 58,551 $ 57,822 $ 16,832 $ 133,205 $ 118,798 $ 112,107 $ 30,390 $ 261,295 Three Months Ended June 30, 2023 Six Months Ended June 30, 2023 Power Solutions and Protection Connectivity Solutions Magnetic Solutions Consolidated Power Solutions and Protection Connectivity Solutions Magnetic Solutions Consolidated By Geographic Region: North America $ 64,121 $ 44,233 $ 11,345 $ 119,699 $ 126,921 $ 87,245 $ 21,700 $ 235,866 Europe 15,907 9,561 2,666 28,134 29,507 17,962 5,431 52,900 Asia 7,063 1,049 12,832 20,944 13,844 3,032 35,479 52,355 $ 87,091 $ 54,843 $ 26,843 $ 168,777 $ 170,272 $ 108,239 $ 62,610 $ 341,121 By Sales Channel: Direct to customer $ 62,022 $ 35,970 $ 18,268 $ 116,260 $ 121,636 $ 69,694 $ 45,679 $ 237,009 Through distribution 25,069 18,873 8,575 52,517 48,636 38,545 16,931 104,112 $ 87,091 $ 54,843 $ 26,843 $ 168,777 $ 170,272 $ 108,239 $ 62,610 $ 341,121
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]	June 30, December 31, 2024 2023 Contract assets - current (unbilled receivables) $ 5,906 $ 12,793 Contract liabilities - current (deferred revenue) $ 2,320 $ 3,046

Note 5 - Earnings Per Share (Ta

Note 5 - Earnings Per Share (Tables)	6 Months Ended
Note 5 - Earnings Per Share (Tables)	Jun. 30, 2024
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 Numerator: Net earnings $ 18,806 $ 27,775 $ 34,680 $ 42,347 Less dividends declared: Class A 127 128 256 257 Class B 725 742 1,472 1,490 Undistributed earnings $ 17,954 $ 26,905 $ 32,952 $ 40,600 Undistributed earnings allocation: Class A undistributed earnings $ 2,901 $ 4,330 $ 5,317 $ 6,533 Class B undistributed earnings 15,053 22,575 27,635 34,067 Total undistributed earnings $ 17,954 $ 26,905 $ 32,952 $ 40,600 Net earnings allocation: Class A net earnings $ 3,028 $ 4,458 $ 5,573 $ 6,790 Class B net earnings 15,778 23,317 29,107 35,557 Net earnings $ 18,806 $ 27,775 $ 34,680 $ 42,347 Denominator: Weighted-average shares outstanding: Class A 2,124 2,142 2,131 2,142 Class B 10,492 10,634 10,551 10,636 Net earnings per share: Class A $ 1.43 $ 2.08 $ 2.61 $ 3.17 Class B $ 1.50 $ 2.19 $ 2.76 $ 3.34

Note 6 - Fair Value Measureme_2

Note 6 - Fair Value Measurements (Tables)	6 Months Ended
Note 6 - Fair Value Measurements (Tables)	Jun. 30, 2024
Notes Tables
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]	June 30, 2024 Carrying value Fair value Cash and cash equivalents Other Current Assets Cash $ 61,321 $ 61,321 $ 61,321 $ - Level 1: Money market funds 22,201 22,201 22,201 - Money market funds (Rabbi Trust) 804 804 - - Subtotal 23,005 23,005 22,201 - Level 2: Certificates of deposit and time deposits 4,553 4,868 1,454 3,099 Subtotal 4,553 4,868 1,454 3,099 Total $ 88,879 $ 89,194 $ 84,976 $ 3,099 December 31, 2023 Carrying value Fair value Cash and cash equivalents Other Current Assets Cash $ 57,544 $ 57,544 $ 57,544 $ - Level 1: Money market funds 31,188 31,188 31,188 - Money market funds (Rabbi Trust) 303 303 - 303 Subtotal 31,491 31,491 31,188 303 Level 2: Certificates of deposit and time deposits 3,629 3,926 639 2,990 Subtotal 3,629 3,926 639 2,990 Total $ 92,664 $ 92,961 $ 89,371 $ 3,293
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	Balance Sheet Classification June 30, 2024 December 31, 2023 Derivative assets: Foreign currency forward contracts: Designated as cash flow hedges Other current assets $ - $ - Non designated as hedging instruments Other current assets - 486 Interest rate swap agreements: Designated as a cash flow hedge Other assets 4,012 3,960 Total derivative assets $ 4,012 $ 4,446 Derivative liabilities: Foreign currency forward contracts: Designated as cash flow hedges Other current liabilities $ 232 $ 5 Not designated as hedging instruments Other current liabilities 292 - Total derivative liabilities $ 524 $ 5

Note 7 - Inventories (Tables)

Note 7 - Inventories (Tables)	6 Months Ended
Note 7 - Inventories (Tables)	Jun. 30, 2024
Notes Tables
Schedule of Inventory, Current [Table Text Block]	June 30, December 31, 2024 2023 Raw materials $ 54,903 $ 63,647 Work in progress 44,000 42,038 Finished goods 29,028 30,855 Inventories $ 127,931 $ 136,540

Note 8 - Property, Plant and _2

Note 8 - Property, Plant and Equipment (Tables)	6 Months Ended
Note 8 - Property, Plant and Equipment (Tables)	Jun. 30, 2024
Notes Tables
Property, Plant and Equipment [Table Text Block]	June 30, December 31, 2024 2023 Land $ 117 $ 348 Buildings and improvements 12,945 15,286 Machinery and equipment 98,439 98,527 Construction in progress 1,507 1,567 113,008 115,728 Accumulated depreciation (77,926 ) (79,195 ) Property, plant and equipment, net $ 35,082 $ 36,533

Note 9 - Accrued Expenses (Tabl

Note 9 - Accrued Expenses (Tables)	6 Months Ended
Note 9 - Accrued Expenses (Tables)	Jun. 30, 2024
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]	June 30, December 31, 2024 2023 Salaries, bonuses and related benefits $ 22,370 $ 33,566 Deferred revenue 2,320 3,046 Accrued restructuring costs 4,054 5,498 Sales commissions 2,377 2,347 Warranty accrual 1,659 1,542 Other 6,136 8,658 $ 38,916 $ 54,657
Restructuring and Related Costs [Table Text Block]	Six Months Ended June 30, 2024 Liability at Cash Payments Liability at December 31, New and Other June 30, 2023 Charges Settlements 2024 Severance costs $ 1,551 $ 703 $ (2,045 ) $ 209 Other restructuring costs 3,947 - (102 ) 3,845 Total $ 5,498 $ 703 $ (2,147 ) $ 4,054

Note 10 - Derivative Instrume_2

Note 10 - Derivative Instruments and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Derivative Instruments, Gain (Loss) [Table Text Block]	Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 Net (losses) gains recognized in AOCL: Foreign currency forward contracts $ (77 ) $ (1,091 ) $ (188 ) $ (1,452 ) Interest rate swap agreements 331 1,351 1,286 943 $ 254 $ 260 $ 1,098 $ (509 ) Net gains (losses) reclassified from AOCL to the consolidated statement of operations: Foreign currency forward contracts $ (83 ) $ (37 ) $ (351 ) $ 114 Interest rate swap agreements 622 562 1,237 1,048 $ 539 $ 525 $ 886 $ 1,162
Derivatives Not Designated as Hedging Instruments [Table Text Block]	Three Months Ended Six Months Ended June 30, June 30, Classification in Consolidated Statements of Operations 2024 2023 2024 2023 Foreign currency forward contracts Other (expense)/income, net $ 103 $ 34 262 $ 34 $ 103 $ 34 $ 262 $ 34

Note 13 - Retirement, Savings_2

Note 13 - Retirement, Savings and Deferred Compensation Plans (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Schedule of Net Benefit Costs [Table Text Block]	Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 Service cost $ 99 $ 92 $ 198 $ 185 Interest cost 226 221 452 443 Net amortization 20 18 40 35 Net periodic benefit cost $ 345 $ 331 $ 690 $ 663
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]	June 30, December 31, 2024 2023 Prior service cost $ 172 $ 212 Net gain (1,336 ) (1,336 ) $ (1,164 ) $ (1,124 )

Note 14 - Accumulated Other C_2

Note 14 - Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
Note 14 - Accumulated Other Comprehensive Loss (Tables)	Jun. 30, 2024
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	June 30, December 31, 2024 2023 Foreign currency translation adjustment, net of taxes of ($ 302 276 $ (21,198 ) $ (16,423 ) Unrealized gains on interest rate swap cash flow hedge, net of taxes of $ 0 0 4,009 3,960 Unrealized holding gains on marketable securities, net of taxes of ($ 7 7 20 19 Unfunded SERP liability, net of taxes of $ 727 718 437 407 Accumulated other comprehensive loss $ (16,732 ) $ (12,037 )
Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component [Table Text Block]	Foreign Currency Unrealized Gains on Unrealized Holding Translation Interest Rate Swap Gains on Unfunded Adjustment Cash Flow Hedge Marketable Securities SERP Liability Total Balance at December 31, 2023 $ (16,423 ) $ 3,960 $ 19 $ 407 $ (12,037 ) Other comprehensive (loss) income before reclassifications (5,126 ) 1,286 1 61 (3,778 ) Amount reclassified from accumulated other comprehensive loss 351 (1,237 ) - (31 ) (a) (917 ) Net current period other comprehensive (loss) income (4,775 ) 49 1 30 (4,695 ) Balance at June 30, 2024 $ (21,198 ) $ 4,009 $ 20 $ 437 $ (16,732 )

Note 16 - Segments (Tables)

Note 16 - Segments (Tables)	6 Months Ended
Note 16 - Segments (Tables)	Jun. 30, 2024
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Three Months Ended June 30, 2024 Power Solutions Connectivity Magnetic and Protection Solutions Solutions Corporate Total Revenue $ 58,551 $ 57,822 $ 16,832 $ - $ 133,205 Gross Profit 26,736 22,512 4,442 (294 ) 53,396 Gross Profit % 45.7 % 38.9 % 26.4 % nm 40.1 % Three Months Ended June 30, 2023 Power Solutions Connectivity Magnetic and Protection Solutions Solutions Corporate Total Revenue $ 87,091 $ 54,843 $ 26,843 $ - $ 168,777 Gross Profit 31,124 20,512 6,595 (2,694 ) 55,537 Gross Profit % 35.7 % 37.4 % 24.6 % nm 32.9 % Six Months Ended June 30, 2024 Power Solutions Connectivity Magnetic and Protection Solutions Solutions Corporate Total Revenue $ 118,798 $ 112,107 $ 30,390 $ - $ 261,295 Gross Profit 53,252 42,129 6,616 (523 ) 101,474 Gross Profit % 44.8 % 37.6 % 21.8 % nm 38.8 % Six Months Ended June 30, 2023 Power Solutions Connectivity Magnetic and Protection Solutions Solutions Corporate Total Revenue $ 170,272 $ 108,239 $ 62,610 $ - $ 341,121 Gross Profit 60,804 38,708 14,763 (5,074 ) 109,201 Gross Profit % 35.7 % 35.8 % 23.6 % nm 32.0 %

Note 1 - Basis of Presentatio_3

Note 1 - Basis of Presentation and Accounting Policies - Held to Maturity Securities (Details) - US Treasury Securities [Member] $ in Thousands	Jun. 30, 2024 USD ($)
Held to maturity U.S. Treasury securities, amortized cost	$ 58,822
Held to maturity U.S. Treasury securities, gross unrealized gains	384
Held to maturity U.S. Treasury securities, fair value	$ 59,206

Note 2 - Investment in Innole_2

Note 2 - Investment in Innolectric (Details Textual) $ in Thousands, € in Millions			3 Months Ended		6 Months Ended
	Feb. 01, 2023 USD ($)	Feb. 01, 2023 EUR (€)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 EUR (€)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 EUR (€)	Jun. 30, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 EUR (€)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures			$ 9,943		$ 9,943			$ 10,282
Innolectric AG [Member]
Loans and Leases Receivable, Related Parties, Additions \| €				€ 0.2		€ 0.7
Loans and Leases Receivable, Related Parties			2,800		2,800		€ 2.6	$ 2,100	€ 2
Loans and Leases Receivable, Interest Rate								5%	5%
Innolectric AG [Member] \| Power Solutions and Protection Segment [Member]
Net Income (Loss) Attributable to Noncontrolling Interest			$ (300)		$ (100)
Innolectric AG [Member]
Subsidiary, Ownership Percentage, Noncontrolling Owner	33.33%
Payments to Acquire Interest in Subsidiaries and Affiliates	$ 8,800	€ 8
Business Acquisition, Transaction Costs	1,300
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	11,000
Business Combination, Consideration Transferred, Liabilities Incurred	$ 1,000

Note 3 - Divestiture of Subsi_3

Note 3 - Divestiture of Subsidiary (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 01, 2023
Bel Stewart s.r.o. [Member] \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Disposal Group, Including Discontinued Operation, Consideration	$ 5,063	$ 5,100

Note 3 - Divestiture of Subsi_4

Note 3 - Divestiture of Subsidiary - Assets and Liabilities Included in Sale (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 01, 2023
Gain on sale recognized	$ 0	$ 1,115	$ 0	$ 1,115
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] \| Bel Stewart s.r.o. [Member]
Cash and cash equivalents	2,072		2,072
Accounts receivable	1,030		1,030
Inventories	1,310		1,310
Property, plant and equipment	326		326
Other assets	48		48
Accounts payable	441		441
Accrued expenses	126		126
Income taxes payable	100		100
Other current liabilities	13		13
Other long-term liabilities	23		23
Total net assets transferred	4,083		4,083
Consideration received	$ 5,063		5,063		$ 5,100
Gain on sale recognized			$ 980

Note 4 - Revenue (Details Textu

Note 4 - Revenue (Details Textual) $ in Millions	Jun. 30, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-07-01
Revenue, Remaining Performance Obligation, Amount	$ 18.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Amount	$ 10.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Amount	$ 3.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year

Note 4 - Revenue - Disaggregati

Note 4 - Revenue - Disaggregation of Revenue by Product Group and Sales Channel (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net sales	$ 133,205	$ 168,777	$ 261,295	$ 341,121
Sales Channel, Directly to Consumer [Member]
Net sales	85,793	116,260	168,474	237,009
Sales Channel, Through Intermediary [Member]
Net sales	47,412	52,517	92,821	104,112
Power Solutions and Protection [Member]
Net sales	58,551	87,091	118,798	170,272
Power Solutions and Protection [Member] \| Sales Channel, Directly to Consumer [Member]
Net sales	37,572	62,022	76,397	121,636
Power Solutions and Protection [Member] \| Sales Channel, Through Intermediary [Member]
Net sales	20,979	25,069	42,401	48,636
Connectivity Solutions [Member]
Net sales	57,822	54,843	112,107	108,239
Connectivity Solutions [Member] \| Sales Channel, Directly to Consumer [Member]
Net sales	36,428	35,970	70,498	69,694
Connectivity Solutions [Member] \| Sales Channel, Through Intermediary [Member]
Net sales	21,394	18,873	41,609	38,545
Magnetic Solutions [Member]
Net sales	16,832	26,843	30,390	62,610
Magnetic Solutions [Member] \| Sales Channel, Directly to Consumer [Member]
Net sales	11,793	18,268	21,579	45,679
Magnetic Solutions [Member] \| Sales Channel, Through Intermediary [Member]
Net sales	5,039	8,575	8,811	16,931
North America [Member]
Net sales	91,927	119,699	181,483	235,866
North America [Member] \| Power Solutions and Protection [Member]
Net sales	39,197	64,121	78,746	126,921
North America [Member] \| Connectivity Solutions [Member]
Net sales	45,380	44,233	89,264	87,245
North America [Member] \| Magnetic Solutions [Member]
Net sales	7,350	11,345	13,473	21,700
Europe [Member]
Net sales	26,970	28,134	53,955	52,900
Europe [Member] \| Power Solutions and Protection [Member]
Net sales	14,610	15,907	30,943	29,507
Europe [Member] \| Connectivity Solutions [Member]
Net sales	11,242	9,561	20,678	17,962
Europe [Member] \| Magnetic Solutions [Member]
Net sales	1,118	2,666	2,334	5,431
Asia [Member]
Net sales	14,308	20,944	25,857	52,355
Asia [Member] \| Power Solutions and Protection [Member]
Net sales	4,744	7,063	9,109	13,844
Asia [Member] \| Connectivity Solutions [Member]
Net sales	1,200	1,049	2,165	3,032
Asia [Member] \| Magnetic Solutions [Member]
Net sales	$ 8,364	$ 12,832	$ 14,583	$ 35,479

Note 4 - Revenue - Contract Ass

Note 4 - Revenue - Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Contract assets - current (unbilled receivables)	$ 5,906	$ 12,793
Contract liabilities - current (deferred revenue)	$ 2,320	$ 3,046

Note 5 - Earnings Per Share - B

Note 5 - Earnings Per Share - Basic and Diluted Net Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Net earnings	$ 18,806	$ 15,874	$ 27,775	$ 14,572	$ 34,680	$ 42,347
Undistributed earnings	17,954		26,905		32,952	40,600
Common Class A [Member]
Net earnings	3,028		4,458		5,573	6,790
Less dividends declared	127	129	128	128	256	257
Undistributed earnings	$ 2,901		$ 4,330		$ 5,317	$ 6,533
Class A - basic and diluted (in shares)	2,124		2,142		2,131	2,142
Net earnings per common share - basic and diluted (in dollars per share)	$ 1.43		$ 2.08		$ 2.61	$ 3.17
Common Class B [Member]
Net earnings	$ 15,778		$ 23,317		$ 29,107	$ 35,557
Less dividends declared	725	$ 747	742	$ 747	1,472	1,490
Undistributed earnings	$ 15,053		$ 22,575		$ 27,635	$ 34,067
Class A - basic and diluted (in shares)	10,492		10,634		10,551	10,636
Net earnings per common share - basic and diluted (in dollars per share)	$ 1.5		$ 2.19		$ 2.76	$ 3.34

Note 6 - Fair Value Measureme_3

Note 6 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Derivative Asset	$ 4,012	$ 4,446
Long-Term Debt, Fair Value	60,000
Long-Term Debt, Gross		60,000
Fair Value, Nonrecurring [Member]
Assets, Fair Value Disclosure, Total	0	0
Foreign Exchange Forward [Member]
Derivative Assets (Liabilities), at Fair Value, Net	500	500
Interest Rate Swap [Member]
Derivative Asset	4,000	4,000
Investments Held in Rabbi Trust [Member]
Debt Securities, Available-for-Sale	$ 800	$ 300

Note 6 - Fair Value Measureme_4

Note 6 - Fair Value Measurements - Fair Value Assets by Investment Category (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Cash and Cash Equivalents [Member]
Assets, fair value	$ 84,976	$ 89,371
Cash and Cash Equivalents [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	22,201	31,188
Cash and Cash Equivalents [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets, fair value	1,454	639
Other Current Assets [Member]
Assets, fair value	3,099	3,293
Other Current Assets [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	0	303
Other Current Assets [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets, fair value	3,099	2,990
Cash [Member] \| Cash and Cash Equivalents [Member]
Assets, fair value	61,321	57,544
Cash [Member] \| Other Current Assets [Member]
Assets, fair value	0	0
Money Market Funds [Member] \| Cash and Cash Equivalents [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	22,201	31,188
Money Market Funds [Member] \| Other Current Assets [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	0	0
Money Market Funds, Rabbi Trust [Member] \| Cash and Cash Equivalents [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	0	0
Money Market Funds, Rabbi Trust [Member] \| Other Current Assets [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	0	303
Certificates of Deposit [Member] \| Cash and Cash Equivalents [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets, fair value	1,454	639
Certificates of Deposit [Member] \| Other Current Assets [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets, fair value	3,099	2,990
Reported Value Measurement [Member]
Assets, fair value	88,879	92,664
Reported Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	23,005	31,491
Reported Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets, fair value	4,553	3,629
Reported Value Measurement [Member] \| Cash [Member]
Assets, fair value	61,321	57,544
Reported Value Measurement [Member] \| Money Market Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	22,201	31,188
Reported Value Measurement [Member] \| Money Market Funds, Rabbi Trust [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	804	303
Reported Value Measurement [Member] \| Certificates of Deposit [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets, fair value	4,553	3,629
Estimate of Fair Value Measurement [Member]
Assets, fair value	89,194	92,961
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	23,005	31,491
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets, fair value	4,868	3,926
Estimate of Fair Value Measurement [Member] \| Cash [Member]
Assets, fair value	61,321	57,544
Estimate of Fair Value Measurement [Member] \| Money Market Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	22,201	31,188
Estimate of Fair Value Measurement [Member] \| Money Market Funds, Rabbi Trust [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets, fair value	804	303
Estimate of Fair Value Measurement [Member] \| Certificates of Deposit [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets, fair value	$ 4,868	$ 3,926

Note 6 - Fair Value Measureme_5

Note 6 - Fair Value Measurements - Fair Value of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Total derivative assets	$ 4,012	$ 4,446
Total derivative liabilities	524	5
Interest Rate Swap [Member]
Total derivative assets	4,000	4,000
Other Current Assets [Member] \| Foreign Exchange Forward [Member]
Designated as cash flow hedges	0	0
Non designated as hedging instruments	0	486
Other Noncurrent Assets [Member] \| Interest Rate Swap [Member]
Designated as a cash flow hedge	4,012	3,960
Other Current Liabilities [Member] \| Foreign Exchange Forward [Member]
Designated as a cash flow hedge	232	5
Not designated as hedging instruments	$ 292	$ 0

Note 7 - Inventories - Componen

Note 7 - Inventories - Components of Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Raw materials	$ 54,903	$ 63,647
Work in progress	44,000	42,038
Finished goods	29,028	30,855
Inventories	$ 127,931	$ 136,540

Note 8 - Property, Plant and _3

Note 8 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Depreciation	$ 2.3	$ 2.2	$ 4.6	$ 4.2
Zhongshan, PRC [Member]
Asset, Held-for-Sale, Not Part of Disposal Group	$ 2.1		$ 2.1		$ 1.3

Note 8 - Property, Plant and _4

Note 8 - Property, Plant and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property, plant and equipment, gross	$ 113,008	$ 115,728
Accumulated depreciation	(77,926)	(79,195)
Property, plant and equipment, net	35,082	36,533
Land [Member]
Property, plant and equipment, gross	117	348
Building and Building Improvements [Member]
Property, plant and equipment, gross	12,945	15,286
Machinery and Equipment [Member]
Property, plant and equipment, gross	98,439	98,527
Construction in Progress [Member]
Property, plant and equipment, gross	$ 1,507	$ 1,567

Note 9 - Accrued Expenses - Acc

Note 9 - Accrued Expenses - Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Salaries, bonuses and related benefits	$ 22,370	$ 33,566
Deferred revenue	2,320	3,046
Accrued restructuring costs	4,054	5,498
Sales commissions	2,377	2,347
Warranty accrual	1,659	1,542
Other	6,136	8,658
Accrued Liabilities, Current	$ 38,916	$ 54,657

Note 9 - Accrued Expenses - Act

Note 9 - Accrued Expenses - Activity and Liability Balances Related to Restructuring Costs (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Liability, beginning balance	$ 5,498
New charges	703
Cash payment and other settlements	(2,147)
Liability, ending balance	4,054
Employee Severance [Member]
Liability, beginning balance	1,551
New charges	703
Cash payment and other settlements	(2,045)
Liability, ending balance	209
Other Restructuring [Member]
Liability, beginning balance	3,947
New charges	0
Cash payment and other settlements	(102)
Liability, ending balance	$ 3,845

Note 10 - Derivative Instrume_3

Note 10 - Derivative Instruments and Hedging Activities (Details Textual) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023	Jan. 31, 2023
Foreign Exchange Forward [Member]
Derivative, Notional Amount	$ 18.8	$ 25.8
The 2021 Swaps One [Member]
Derivative, Notional Amount	$ 30
Derivative, Fixed Interest Rate	1.3055%		1.334%
Derivative, Basis Spread on Variable Rate			0.10%
The 2021 Swaps Two [Member]
Derivative, Notional Amount	$ 30
Derivative, Fixed Interest Rate	1.318%		1.348%

Note 10 - Derivative Instrume_4

Note 10 - Derivative Instruments and Hedging Activities - Derivative Financial Instruments Effects on Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net (losses) gains recognized in AOCL	$ 254	$ 260	$ 1,098	$ (509)
Net losses reclassified from AOCL to the consolidated statement of operations	539	525	886	1,162
Foreign Exchange Forward [Member]
Net (losses) gains recognized in AOCL	(77)	(1,091)	(188)	(1,452)
Net losses reclassified from AOCL to the consolidated statement of operations	(83)	(37)	(351)	114
Interest Rate Swap [Member]
Net (losses) gains recognized in AOCL	331	1,351	1,286	943
Net losses reclassified from AOCL to the consolidated statement of operations	$ 622	$ 562	$ 1,237	$ 1,048

Note 10 - Derivative Instrume_5

Note 10 - Derivative Instruments and Hedging Activities - (Losses) Gains Recognized on Derivatives Instruments Not Designated as Hedging (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Derivative instruments gain (loss)	$ 103	$ 34	$ 262	$ 34
Foreign Exchange Forward [Member] \| Nonoperating Income (Expense) [Member]
Derivative instruments gain (loss)	$ 103	$ 34	$ 262	$ 34

Note 11 - Debt (Details Textual

Note 11 - Debt (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		18 Months Ended
Note 11 - Debt (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Revolving Credit Facility [Member]
Long-Term Line of Credit	$ 60,000		$ 60,000		$ 60,000		$ 60,000
Credit and Security Agreement with KeyBank [Member]
Interest Expense, Debt	400	$ 900	800	$ 1,900
Debt, Weighted Average Interest Rate						2.47%
Long-Term Debt, Percentage Bearing Variable Interest, Amount						$ 0
Credit and Security Agreement with KeyBank [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	175,000		175,000		$ 175,000
Debt Instrument, Term (Year)					5 years
Line of Credit Facility, Maximum Letters of Credit Capacity	10,000		10,000		$ 10,000
Line of Credit Facility, Maximum Swing Line Loan Capacity	5,000		5,000		5,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 115,000		$ 115,000		$ 115,000		$ 115,000

Note 12 - Income Taxes (Details

Note 12 - Income Taxes (Details Textual) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Unrecognized Tax Benefits	$ 18		$ 19.8
Unrecognized Tax Benefits, Reduction From Lapse of Applicable Statue of Limitations	2.7
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	0.2	$ 0.3
Deferred Tax Assets, Valuation Allowance	$ 1.1		$ 2

Note 13 - Retirement, Savings_3

Note 13 - Retirement, Savings and Deferred Compensation Plans (Details Textual) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($) shares	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) shares	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Supplemental Employee Retirement Plan [Member]
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 0.1	$ 0.3	$ 0.2	$ 0.9
Bel Fuse Inc. Employees' Savings Plan [Member]
Defined Contribution Plan, Cost	$ 0.3	0.3	$ 0.9	0.7
Bel Fuse Inc. Employees' Savings Plan [Member] \| Common Class A [Member]
Shares Held in Plan (in shares) \| shares	271,013		271,013
Bel Fuse Inc. Employees' Savings Plan [Member] \| Common Class B [Member]
Shares Held in Plan (in shares) \| shares	59,080		59,080
Nonqualified Deferred Compensation Plan [Member]
Deferred Compensation Arrangement, Vesting Age	65		65
Deferred Compensation Plan Assets	$ 1.2		$ 1.2		$ 1
Nonqualified Deferred Compensation Plan [Member] \| Maximum [Member]
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 0.1	$ 0.1	$ 0.1	$ 0.1

Note 13 - Retirement, Savings_4

Note 13 - Retirement, Savings and Deferred Compensation Plans - Components of SERP Expense (Details) - Supplemental Employee Retirement Plan [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Service cost	$ 99	$ 92	$ 198	$ 185
Interest cost	226	221	452	443
Net amortization	20	18	40	35
Net periodic benefit cost	$ 345	$ 331	$ 690	$ 663

Note 13 - Retirement, Savings_5

Note 13 - Retirement, Savings and Deferred Compensation Plans - Amounts Recognized in Accumulated Other Comprehensive Loss (Details) - Supplemental Employee Retirement Plan [Member] - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Prior service cost	$ 172	$ 212
Net gain	(1,336)	(1,336)
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax	$ (1,164)	$ (1,124)

Note 14 - Accumulated Other C_3

Note 14 - Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Foreign currency translation adjustment, net of taxes of ($302) at June 30, 2024 and ($276) at December 31, 2023	$ (21,198)	$ (16,423)
Unrealized gains on interest rate swap cash flow hedge, net of taxes of $0 at June 30, 2024 and $0 at December 31, 2023	4,009	3,960
Unrealized holding gains on marketable securities, net of taxes of ($7) at June 30, 2024 and ($7) at December 31, 2023	20	19
Unfunded SERP liability, net of taxes of $727 at June 30, 2024 and $718 at December 31, 2023	437	407
Accumulated other comprehensive loss	$ (16,732)	$ (12,037)

Note 14 - Accumulated Other C_4

Note 14 - Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Loss (Details) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Foreign currency translation adjustment, tax	$ (302)	$ (276)
Unrealized gains (losses) on interest rate swap cash flow hedge, tax	0	0
Unrealized holding gains on available-for-sale securities, tax	(7)	(7)
Change in unfunded SERP liabilityChange in unfunded SERP liability, tax, tax	$ 727	$ 718

Note 14 - Accumulated Other C_5

Note 14 - Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Balance		$ 346,657	$ 278,063	$ 340,558	$ 262,346
Other comprehensive loss		(1,275)	(1,428)	(4,695)	(310)
Balance		356,415	304,490	356,415	304,490
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance				(16,423)
Other comprehensive (loss) income before reclassifications				(5,126)
Amount reclassified from accumulated other comprehensive loss	[1]			351
Other comprehensive loss				(4,775)
Balance		(21,198)		(21,198)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance				3,960
Other comprehensive (loss) income before reclassifications				1,286
Amount reclassified from accumulated other comprehensive loss	[1]			(1,237)
Other comprehensive loss				49
Balance		4,009		4,009
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance				19
Other comprehensive (loss) income before reclassifications				1
Amount reclassified from accumulated other comprehensive loss	[1]			0
Other comprehensive loss				1
Balance		20		20
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance				407
Other comprehensive (loss) income before reclassifications				61
Amount reclassified from accumulated other comprehensive loss	[1]			(31)
Other comprehensive loss				30
Balance		437		437
AOCI Attributable to Parent [Member]
Balance		(15,457)	(15,428)	(12,037)	(16,546)
Other comprehensive (loss) income before reclassifications				(3,778)
Amount reclassified from accumulated other comprehensive loss	[1]			(917)
Other comprehensive loss				(4,695)
Balance		$ (16,732)	$ (16,856)	$ (16,732)	$ (16,856)

[1]This reclassification relates to the amortization of prior service costs and gains/losses associated with the Company's SERP Plan. This expense is reflected in other income/expense, net on the accompanying condensed consolidated statements of operations.

Note 15 - Commitments and Con_2

Note 15 - Commitments and Contingencies (Details Textual) - USD ($) $ in Millions	12 Months Ended	252 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2024	Dec. 31, 1994
Arezzo Revenue Agency [Member]
Loss Contingency, Estimate of Possible Loss			$ 12
EOS Claim From Principal Commissioner of Customs [Member] \| EOS Power Panama Inc. [Member]
Customs Duties and Imposed Fines	$ 0.9			$ 1.4
Payment for Customs Duties and Imposed Fines and Penalties		$ 0.5
Indemnification Period (Year)	7 years

Note 16 - Segments (Details Tex

Note 16 - Segments (Details Textual)	6 Months Ended
Note 16 - Segments (Details Textual)	Jun. 30, 2024
Number of Industry in which Entity Operates	1
Number of Operating Segments	3
Number of Reportable Segments	3

Note 16 - Segments - Segments (

Note 16 - Segments - Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue	$ 133,205	$ 168,777	$ 261,295	$ 341,121
Gross Profit	$ 53,396	$ 55,537	$ 101,474	$ 109,201
Gross Profit %	40.10%	32.90%	38.80%	32%
Power Solutions and Protection Segment [Member]
Revenue	$ 58,551	$ 87,091	$ 118,798	$ 170,272
Gross Profit	$ 26,736	$ 31,124	$ 53,252	$ 60,804
Gross Profit %	45.70%	35.70%	44.80%	35.70%
Connectivity Solutions [Member]
Revenue	$ 57,822	$ 54,843	$ 112,107	$ 108,239
Gross Profit	$ 22,512	$ 20,512	$ 42,129	$ 38,708
Gross Profit %	38.90%	37.40%	37.60%	35.80%
Magnetic Solutions Segment [Member]
Revenue	$ 16,832	$ 26,843	$ 30,390	$ 62,610
Gross Profit	$ 4,442	$ 6,595	$ 6,616	$ 14,763
Gross Profit %	26.40%	24.60%	21.80%	23.60%
Corporate Segment [Member]
Revenue	$ 0	$ 0	$ 0	$ 0
Gross Profit	$ (294)	$ (2,694)	$ (523)	$ (5,074)