The York Water Company (YORW) 10-Q4 Aug 222022 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, 2022	Aug. 04, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Document Transition Report	false
Entity File Number	001-34245
Entity Registrant Name	YORK WATER CO
Entity Central Index Key	0000108985
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	23-1242500
Entity Address, Address Line One	130 East Market Street
Entity Address, City or Town	York
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	17401
City Area Code	717
Local Phone Number	845-3601
Title of 12(b) Security	Common Stock, No par value
Trading Symbol	YORW
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		14,266,728

Balance Sheets (Unaudited)

Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
ASSETS
UTILITY PLANT, at original cost	$ 508,342	$ 485,750
Plant acquisition adjustments	(3,603)	(3,637)
Accumulated depreciation	(102,870)	(99,204)
Net utility plant	401,869	382,909
OTHER PHYSICAL PROPERTY, net of accumulated depreciation of $495 in 2022 and $483 in 2021	711	717
CURRENT ASSETS:
Cash and cash equivalents	2,644	1
Accounts receivable, net of reserves of $824 in 2022 and $855 in 2021	5,270	4,634
Unbilled revenues	3,014	2,784
Recoverable income taxes	895	894
Materials and supplies inventories, at cost	2,337	1,917
Prepaid expenses	1,446	1,032
Total current assets	15,606	11,262
OTHER LONG-TERM ASSETS:
Prepaid pension cost	16,139	14,054
Note receivable	255	255
Deferred regulatory assets	47,910	45,280
Other assets	4,493	4,376
Total other long-term assets	68,797	63,965
Total Assets	486,983	458,853
COMMON STOCKHOLDERS' EQUITY:
Common stock, no par value, authorized 46,500,000 shares, issued and outstanding 14,264,763 shares in 2022 and 13,112,948 shares in 2021	133,239	88,230
Retained earnings	67,945	64,392
Total common stockholders' equity	201,184	152,622
PREFERRED STOCK, authorized 500,000 shares, no shares issued	0	0
LONG-TERM DEBT, excluding current portion	109,637	138,869
COMMITMENTS
CURRENT LIABILITIES:
Current portion of long-term debt	7,500	7,500
Accounts payable	9,138	6,712
Dividends payable	2,522	2,293
Accrued compensation and benefits	1,531	1,575
Accrued interest	966	959
Deferred regulatory liabilities	594	607
Other accrued expenses	382	440
Total current liabilities	22,633	20,086
DEFERRED CREDITS:
Customers' advances for construction	14,777	12,820
Deferred income taxes	53,158	49,590
Deferred employee benefits	4,575	4,530
Deferred regulatory liabilities	38,010	36,374
Other deferred credits	1,135	2,086
Total deferred credits	111,655	105,400
Contributions in aid of construction	41,874	41,876
Total Stockholders' Equity and Liabilities	$ 486,983	$ 458,853

Balance Sheets (Unaudited) (Par

Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
ASSETS
Other physical property, accumulated depreciation	$ 495	$ 483
CURRENT ASSETS:
Accounts receivables, reserves	$ 824	$ 855
COMMON STOCKHOLDERS' EQUITY:
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	46,500,000	46,500,000
Common stock, issued (in shares)	14,264,763	13,112,948
Common stock, outstanding (in shares)	14,264,763	13,112,948
Preferred stock, authorized (in shares)	500,000	500,000
Preferred stock, issued (in shares)	0	0

Statements of Income (Unaudited

Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Statements of Income (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statements of Income [Abstract]
OPERATING REVENUES:	$ 14,899	$ 13,801	$ 29,139	$ 26,882
OPERATING EXPENSES:
Operation and maintenance	2,915	2,949	6,366	5,755
Administrative and general	2,579	2,441	5,236	4,852
Depreciation and amortization	2,493	2,198	4,973	4,372
Taxes other than income taxes	338	311	692	647
Operating expenses	8,325	7,899	17,267	15,626
Operating income	6,574	5,902	11,872	11,256
OTHER INCOME (EXPENSES):
Interest on debt	(1,205)	(1,222)	(2,502)	(2,436)
Allowance for funds used during construction	225	311	520	573
Other pension costs	(319)	(303)	(638)	(607)
Other income (expenses), net	(80)	(44)	(429)	(145)
Other income (expenses)	(1,379)	(1,258)	(3,049)	(2,615)
Income before income taxes	5,195	4,644	8,823	8,641
Income taxes	166	160	(65)	452
Net Income	$ 5,029	$ 4,484	$ 8,888	$ 8,189
Basic Earnings Per Share (in dollars per share)	$ 0.36	$ 0.35	$ 0.65	$ 0.63
Diluted Earnings Per Share (in dollars per share)	$ 0.36	$ 0.35	$ 0.65	$ 0.63

Statements of Common Stockholde

Statements of Common Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2020	$ 85,935	$ 57,317	$ 143,252
Balance (in shares) at Dec. 31, 2020	13,060,817
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	8,189	8,189
Cash dividends declared	0	(4,900)	(4,900)
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans	$ 1,044	0	1,044
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans (in shares)	23,068
Stock-based compensation	$ 121	0	121
Stock-based compensation (in shares)	6,170
Balance at Jun. 30, 2021	$ 87,100	60,606	147,706
Balance (in shares) at Jun. 30, 2021	13,090,055
Balance at Mar. 31, 2021	$ 86,436	58,574	145,010
Balance (in shares) at Mar. 31, 2021	13,071,733
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	4,484	4,484
Cash dividends declared	0	(2,452)	(2,452)
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans	$ 571	0	571
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans (in shares)	12,152
Stock-based compensation	$ 93	0	93
Stock-based compensation (in shares)	6,170
Balance at Jun. 30, 2021	$ 87,100	60,606	147,706
Balance (in shares) at Jun. 30, 2021	13,090,055
Balance at Dec. 31, 2021	$ 88,230	64,392	$ 152,622
Balance (in shares) at Dec. 31, 2021	13,112,948		13,112,948
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	8,888	$ 8,888
Cash dividends declared	0	(5,335)	(5,335)
Issuance of common stock	$ 43,970	0	43,970
Issuance of common stock (in shares)	1,121,940
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans	$ 881	0	881
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans (in shares)	21,856
Stock-based compensation	$ 158	0	158
Stock-based compensation (in shares)	8,019
Balance at Jun. 30, 2022	$ 133,239	67,945	$ 201,184
Balance (in shares) at Jun. 30, 2022	14,264,763		14,264,763
Balance at Mar. 31, 2022	$ 88,725	65,695	$ 154,420
Balance (in shares) at Mar. 31, 2022	13,123,619
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	5,029	5,029
Cash dividends declared	0	(2,779)	(2,779)
Issuance of common stock	$ 43,970	0	43,970
Issuance of common stock (in shares)	1,121,940
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans	$ 431	0	431
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans (in shares)	11,185
Stock-based compensation	$ 113	0	113
Stock-based compensation (in shares)	8,019
Balance at Jun. 30, 2022	$ 133,239	$ 67,945	$ 201,184
Balance (in shares) at Jun. 30, 2022	14,264,763		14,264,763

Statements of Common Stockhol_2

Statements of Common Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared (in dollars per share)	$ 0.1949	$ 0.1874	$ 0.3898	$ 0.3748

Statements of Cash Flows (Unaud

Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 8,888	$ 8,189
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,973	4,372
Stock-based compensation	158	121
Decrease in deferred income taxes	(64)	(72)
Other	62	38
Changes in assets and liabilities:
(Increase) decrease in accounts receivable and unbilled revenues	(1,069)	443
(Increase) decrease in recoverable income taxes	(1)	68
Increase in materials and supplies, prepaid expenses, prepaid pension cost, regulatory and other assets	(5,993)	(4,471)
Increase in accounts payable, accrued compensation and benefits, accrued expenses, deferred employee benefits, regulatory liabilities, and other deferred credits	4,052	3,415
Increase (decrease) in accrued interest	7	(1)
Net cash provided by operating activities	11,013	12,102
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, including debt portion of allowance for funds used during construction of $291 in 2022 and $320 in 2021	(19,004)	(16,043)
Net cash used in investing activities	(19,004)	(16,043)
CASH FLOWS FROM FINANCING ACTIVITIES:
Customers' advances for construction and contributions in aid of construction	2,590	1,204
Repayments of customer advances	(635)	(476)
Proceeds of long-term debt issues	13,674	23,910
Repayments of long-term debt	(42,994)	(20,575)
Changes in cash overdraft position	(1,746)	(1,263)
Issuance of common stock	44,851	1,044
Dividends paid	(5,106)	(4,899)
Net cash provided by (used in) financing activities	10,634	(1,055)
Net change in cash, cash equivalents, and restricted cash	2,643	(4,996)
Cash, cash equivalents, and restricted cash at beginning of period	1	5,002
Cash and cash equivalents at end of period	2,644	6
Cash paid during the period for:
Interest, net of amounts capitalized	2,132	2,016
Income taxes	$ 0	$ 217
Supplemental schedule of non-cash investing and financing activities:
Accounts payable includes $5,796 in 2022 and $5,166 in 2021 for the construction of utility plant.

Statements of Cash Flows (Una_2

Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, debt portion of allowance for funds used during construction	$ 291	$ 320
Supplemental schedule of non-cash investing and financing activities:
Accounts payable for construction of utility plant	$ 5,796	$ 5,166

Basis of Presentation

Basis of Presentation	6 Months Ended
Basis of Presentation	Jun. 30, 2022
Basis of Presentation [Abstract]
Basis of Presentation	1. Basis of Presentation The interim financial statements are unaudited but, in the opinion of management, reflect all adjustments, consisting of only normal recurring accruals, necessary for a fair presentation of results for such periods. Because the financial statements cover an interim period, they do not include all disclosures and notes normally provided in annual financial statements, and therefore, should be read in conjunction with the financial statements and notes thereto contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2021. Operating results for the are not necessarily indicative of the results that may be expected for the year ending December 31, . Additionally, based on the duration and severity of the novel coronavirus ("COVID-19") pandemic, the Company is uncertain of the ultimate impact it could have on the business.

Accounts Receivable and Contrac

Accounts Receivable and Contract Assets	6 Months Ended
Accounts Receivable and Contract Assets	Jun. 30, 2022
Accounts Receivable and Contract Assets [Abstract]
Accounts Receivable and Contract Assets	2. Accounts Receivable and Contract Assets Accounts receivable and contract assets are summarized in the following table: As of Jun. 30, 2022 As of Dec. 31, 2021 Change Accounts receivable – customers $ 5,742 $ 5,034 $ 708 Other receivables 352 455 (103 ) 6,094 5,489 605 Less: allowance for doubtful accounts (824 ) (855 ) 31 Accounts receivable, net $ 5,270 $ 4,634 $ 636 Unbilled revenue $ 3,014 $ 2,784 $ 230 Differences in timing of revenue recognition, billings, and cash collections result in receivables and contract assets. Generally, billing occurs subsequent to revenue recognition, resulting in a contract asset reported as unbilled revenue on the balance sheet. The Company does not receive advances or deposits from customers before revenue is recognized so no contract liabilities are reported. Accounts receivable are recorded when the right to consideration becomes unconditional and are presented separately on the balance sheet. The changes in accounts receivable – customers and in unbilled revenue were primarily due to normal timing difference between performance and the customer’s payments.

Common Stock and Earnings Per S

Common Stock and Earnings Per Share	6 Months Ended
Common Stock and Earnings Per Share	Jun. 30, 2022
Common Stock and Earnings Per Share [Abstract]
Common Stock and Earnings Per Share	3. Common Stock and Earnings Per Share Net income of $5,029 and $4,484 for the three months ended June 30, 2022 and 2021, respectively, and $8,888 and $8,189 for the six months ended June 30, 2022 and 2021, respectively, is used to calculate both basic and diluted earnings per share. Basic earnings per share is based on the weighted average number of common shares outstanding. Diluted earnings per share is based on the weighted average number of common shares outstanding plus potentially dilutive shares. The dilutive effect of employee stock-based compensation is included in the computation of diluted earnings per share and is calculated using the treasury stock method and expected proceeds upon exercise or issuance of the stock-based compensation. The following table summarizes the shares used in computing basic and diluted earnings per share: Three Months Ended June 30 Six Months Ended June 30 2022 2021 2022 2021 Weighted average common shares, basic 14,188,579 13,068,806 13,650,118 13,062,374 Effect of dilutive securities: Employee stock-based compensation 1,123 1,435 1,060 1,088 Weighted average common shares, diluted 14,189,702 13,070,241 13,651,178 13,063,462 On April 5, 2022, the Company closed an underwritten public offering of 975,600 shares of its common stock, with an offering price of $41 per share. On April 7, 2022, the Company closed on the full exercise of the underwriter’s option to purchase an additional 146,340 shares of its common stock at the same price. Janney Montgomery Scott LLC was the underwriter in the offering. The Company received net proceeds in the offering, after deducting offering expenses and underwriters’ discounts and commissions, of $43,970. The net proceeds were used to repay the Company’s borrowings under its line of credit agreement incurred to fund capital expenditures and acquisitions, and for general corporate purposes. On March 11, 2013, the Board of Directors, or the Board, authorized a share repurchase program granting the Company authority to repurchase up to 1,200,000 shares of the Company's common stock from time to time. The stock repurchase program has no specific end date and the Company may repurchase shares in the open market or through privately negotiated transactions. The Company may suspend or discontinue the repurchase program at any time. No shares were repurchased during the three or six months ended June 30, 2022 and 2021. As of June 30, 2022, 618,004 shares remain authorized for repurchase.

Debt

Debt	6 Months Ended
Debt	Jun. 30, 2022
Debt [Abstract]
Debt	4. Debt For the six months ended June 30, 2022, the Company did not enter into any new long-term debt arrangements or modify its outstanding long-term debt, which is summarized in the table below. As of Jun. 30, 2022 As of Dec. 31, 2021 8.43 $ 7,500 $ 7,500 Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2008A, due 2029 12,000 12,000 3.00 10,500 10,500 3.10 14,870 14,870 3.23 15,000 15,000 4.00 4.50 10,000 10,000 4.54 20,000 20,000 3.24% Senior Notes, due 2050 30,000 30,000 Committed Line of Credit, due September 2023 – 29,320 Total long-term debt 119,870 149,190 Less discount on issuance of long-term debt (164 ) (169 ) Less unamortized debt issuance costs (2,569 ) (2,652 ) Less current maturities (7,500 ) (7,500 ) Long-term portion $ 109,637 $ 138,869

Interest Rate Swap Agreement

Interest Rate Swap Agreement	6 Months Ended
Interest Rate Swap Agreement	Jun. 30, 2022
Interest Rate Swap Agreement [Abstract]
Interest Rate Swap Agreement	5. Interest Rate Swap Agreement The Company is exposed to certain risks relating to its ongoing business operations. The primary risk managed by using derivative instruments is interest rate risk. The Company utilizes an interest rate swap agreement to effectively convert the Company's $12,000 variable-rate debt issue to a fixed rate. Interest rate swaps are contracts in which a series of interest rate cash flows are exchanged over a prescribed period. The notional amount on which the interest payments are based ($12,000) is not exchanged. The interest rate swap provides that the Company pays the counterparty a fixed interest rate of 3.16% on the notional amount of $12,000. In exchange, the counterparty pays the Company a variable interest rate based on 59% of the U.S. Dollar one-month LIBOR rate on the notional amount. The intent is for the variable rate received from the swap counterparty to approximate the variable rate the Company pays to bondholders on its variable rate debt issue, resulting in a fixed rate being paid to the swap counterparty and reducing the Company's interest rate risk. The Company’s net payment rate on the swap was 2.60% and 3.09% for the three months ended June 30, 2022 and 2021, respectively, and 2.75% and 3.02% for the six months ended June 30, 2022 and 2021, respectively. The interest rate swap agreement is classified as a financial derivative used for non-trading activities. The accounting standards regarding accounting for derivatives and hedging activities require companies to recognize all derivative instruments as either assets or liabilities at fair value on the balance sheet. In accordance with the standards, the interest rate swap is recorded on the balance sheet in other deferred credits at fair value (see Note 6). The Company uses regulatory accounting treatment rather than hedge accounting to defer the unrealized gains and losses on its interest rate swap. These unrealized gains and losses are recorded as a regulatory asset. Based on current ratemaking treatment, the Company expects the unrealized gains and losses to be recognized in rates as a component of interest expense as the swap settlements occur. Swap settlements are recorded in the income statement with the hedged item as interest expense. Swap settlements resulted in the reclassification from regulatory assets to interest expense of $78 and $93 for the three months ended June 30, 2022 and 2021, respectively, and $168 and $184 for the six months ended June 30, 2022 and 2021, respectively. The overall swap result was a (gain) loss of $(281) and $212 for the three months ended June 30, 2022 and 2021, respectively, and $(775) and $(219) for the six months ended June 30, 2022 and 2021, respectively. The Company expects to reclassify $154 from regulatory assets to interest expense as a result of swap settlements over the next 12 months. The interest rate swap agreement contains provisions that require the Company to maintain a credit rating of at least BBB- with Standard & Poor's. If the Company's rating were to fall below this rating, it would be in violation of these provisions, and the counterparty to the derivative could request immediate payment if the derivative was in a liability position. On October 8, 2021, Standard & Poor's affirmed the Company's credit rating at A-, with a stable outlook and adequate liquidity. The Company's interest rate swap was in a liability position as of June 30, 2022. If a violation due to credit rating, or some other default provision, were triggered on June 30, 2022, the Company would have been required to pay the counterparty approximately $1,173. The interest rate swap will expire on October 1, 2029. Other than the interest rate swap, the Company has no other derivative instruments.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
Fair Value of Financial Instruments	Jun. 30, 2022
Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments	6. Fair Value of Financial Instruments The accounting standards regarding fair value measurements establish a fair value hierarchy which indicates the extent to which inputs used in measuring fair value are observable in the market. Level 1 inputs include quoted prices for identical instruments and are the most observable. Level 2 inputs include quoted prices for similar assets and observable inputs such as interest rates, commodity rates and yield curves. Level 3 inputs are not observable in the market and include management’s own judgments about the assumptions market participants would use in pricing the asset or liability. The Company has recorded its interest rate swap liability at fair value in accordance with the standards. The liability is recorded under the caption “Other deferred credits” on the balance sheet. The table below illustrates the fair value of the interest rate swap as of the end of the reporting period. Description June 30, 2022 Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2) Interest Rate Swap $1,135 $1,135 Fair values are measured as the present value of all expected future cash flows based on the LIBOR-based swap yield curve as of the date of the valuation. These inputs to this calculation are deemed to be Level 2 inputs. The balance sheet carrying value reflects the Company's credit quality as of June 30, 2022. The rate used in discounting all prospective cash flows anticipated to be made under this swap reflects a representation of the yield to maturity for 30-year debt on utilities rated A- as of June 30, 2022. The use of the Company's credit rating resulted in a reduction in the fair value of the swap liability of $38 as of June 30, 2022. The fair value of the swap reflecting the Company's credit quality as of December 31, 2021 is shown in the table below. Description December 31, 2021 Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2) Interest Rate Swap $2,086 $2,086 The carrying amount of current assets and liabilities that are considered financial instruments approximates fair value as of the dates presented. The Company's total long-term debt, with a carrying value of $119,870 at June 30, 2022, and $149,190 at December 31, 2021, had an estimated fair value of approximately $108,000 and $168,000 respectively. The estimated fair value of debt was calculated using a discounted cash flow technique that incorporates a market interest yield curve with adjustments for duration and risk profile. These inputs to this calculation are deemed to be Level 2 inputs. The Company recognized its credit rating in determining the yield curve and did not factor in third-party credit enhancements including the letter of credit on the 2008 Pennsylvania Economic Development Financing Authority Series A issue. Customers' advances for construction and note receivable had carrying values at June 30, 2022 of $14,777 and $255, respectively. At December 31, 2021, customers' advances for construction and note receivable had carrying values of $12,820 and $255, respectively. The relative fair values of these amounts cannot be accurately estimated since the timing of future payment streams is dependent upon several factors, including new customer connections, customer consumption levels and future rate increases.

Commitments

Commitments	6 Months Ended
Commitments	Jun. 30, 2022
Commitments [Abstract]
Commitments	7. Commitments The Company has committed to capital expenditures of approximately $39,205 to armor and replace the spillway of the Lake Williams dam, of which $35,066 remains to be incurred as of June 30, 2022. The Company may make additional commitments for this project in the future. The Company entered into a consent order agreement with the Pennsylvania Department of Environmental Protection, or DEP, in December 2016 after the Company determined it exceeded the action level for lead as established by the Lead and Copper Rule, or LCR, issued by the U.S. Environmental Protection Agency. The Company did not have an exceedance in any subsequent compliance test and successfully completed its commitment to exceed the LCR replacement schedule by replacing all the known company-owned lead service lines within four years from the agreement. In June 2022, DEP determined the Company had completed all requirements and terminated the consent order agreement. The Company was granted approval by the Pennsylvania Public Utility Commission, or PPUC, to modify its tariff to include the cost of the annual replacement of up to lead customer-owned service lines over from the agreement. The tariff modification allows the Company to replace customer-owned service lines at its own initial cost. The Company will record the costs as a regulatory asset to be recovered in future base rates to customers, over a period. The cost for the customer-owned lead service line replacements was approximately $ and $ through and , respectively, and is included as a regulatory asset.

Revenue

Revenue	6 Months Ended
Revenue	Jun. 30, 2022
Revenue [Abstract]
Revenue	8. Revenue The following table shows the Company’s revenues disaggregated by service and customer type. Three Months Ended June 30 Six Months Ended June 30 2022 2021 2022 2021 Water utility service: Residential $ 8,819 $ 8,543 $ 17,266 $ 16,688 Commercial and industrial 3,896 3,629 7,484 6,939 Fire protection 836 795 1,672 1,601 Wastewater utility service: Residential 925 474 1,854 945 Commercial and industrial 116 79 225 158 Billing and revenue collection services 84 120 214 239 Collection services 89 11 148 11 Other revenue 5 10 19 20 Total Revenue from Contracts with Customers 14,770 13,661 28,882 26,601 Rents from regulated property 129 140 257 281 Total Operating Revenue $ 14,899 $ 13,801 $ 29,139 $ 26,882 Utility Service The Company provides utility service as a distinct and single performance obligation to each of its water and wastewater customers. The transaction price is detailed in the tariff pursuant to an order by the PPUC and made publicly available. There is no variable consideration and no free service, special rates, or subnormal charges to any customer. Due to the fact that the contract includes a single performance obligation, no judgment is required to allocate the transaction price. The performance obligation is satisfied over time through the continuous provision of utility service through a stand-ready obligation to perform and the transfer of water or the collection of wastewater through a series of distinct transactions that are identical in nature and have the same pattern of transfer to the customer. The Company uses an output method to recognize the utility service revenue over time. The stand-ready obligation is recognized through the passage of time in the form of a fixed charge and the transfer of water or the collection of wastewater is recognized at a per unit rate based on the actual or estimated flow through the meter. Each customer is invoiced every month and the invoice is due within twenty days. The utility service has no returns or warranties associated with it. No revenue is recognized from performance obligations satisfied in prior periods and no performance obligations remain unsatisfied as of the end of the reporting period. A contract asset for unbilled revenue is recognized for the passage of time and the actual or estimated usage from the latest meter reading to the end of the accounting period. The methodology is standardized and consistently applied to reduce bias and the need for judgment. Billing and Revenue Collection Service The Company provides billing and revenue collection service as distinct performance obligations to two municipalities within the service territory of the Company. The municipalities provide service to their residents and the Company acts as the billing and revenue collection agent for the municipalities. The transaction price is a fixed amount per bill prepared as established in the contract. There is no variable consideration. Due to the fact that both the billing performance obligation and the revenue collection performance obligation are materially complete by the end of the reporting period, the Company does not allocate the transaction price between the two performance obligations. The performance obligations are satisfied at a point in time when the bills are sent as the municipalities receive all the benefits and bears all of the risk of non-collection at that time. Each municipality is invoiced when the bills are complete and the invoice is due within thirty days. The billing and revenue collection service has no returns or warranties associated with it. No revenue is recognized from performance obligations satisfied in prior periods and no performance obligations remain unsatisfied as of the end of the reporting period. Collection Service The Company provides collection service as a distinct and single performance obligation to several municipalities within the service territory of the Company. The municipalities provide wastewater service to their residents. If those residents are delinquent in paying for their wastewater service, the municipalities request that the Company post for and shut off the supply of water to the premises of those residents. When the resident is no longer delinquent, the Company will restore water service to the premises. The transaction price for each posting, each shut off, and each restoration is a fixed amount as established in the contract. There is no variable consideration. Due to the fact that the contract includes a single performance obligation, no judgment is required to allocate the transaction price. The performance obligation is satisfied at a point in time when the posting, shut off, or restoration is completed as the municipalities receive all the benefits in the form of payment or no longer providing wastewater service. Each municipality is invoiced periodically for the posting, shut offs, and restorations that have been completed since the last billing and the invoice is due within thirty days. The collection service has no returns or warranties associated with it. No revenue is recognized from performance obligations satisfied in prior periods and no performance obligations remain unsatisfied as of the end of the reporting period. A contract asset for unbilled revenue is recognized for postings, shut offs, and restorations that have been completed from the last billing to the end of the accounting period. Service Line Protection Plan The Company provides service line protection as a distinct and single performance obligation to current water customers that choose to participate. The transaction price is detailed in the plan’s terms and conditions and made publicly available. There is no variable consideration. Due to the fact that the contract includes a single performance obligation, no judgment is required to allocate the transaction price. The performance obligation is satisfied over time through the continuous provision of service line protection through a stand-ready obligation to perform. The Company uses an output method to recognize the service line protection revenue over time. The stand-ready obligation is recognized through the passage of time. A customer has a choice to prepay for an entire year or to pay in advance each month. The service line protection plan has no returns or extended warranties associated with it. No revenue is recognized from performance obligations satisfied in prior periods and no material performance obligations remain unsatisfied as of the end of the reporting period.

Rate Matters

Rate Matters	6 Months Ended
Rate Matters	Jun. 30, 2022
Rate Matters [Abstract]
Rate Matters	9. Rate Matters From time to time, the Company files applications for rate increases with the PPUC and is granted rate relief as a result of such requests. The most recent rate request was filed by the Company on May 27, 2022 and seeks an annual increase in water rates of $18,854, which would represent a 33.8% increase, and an annual increase in wastewater rates of $1,457, which would represent a 35% increase. The request is currently under review by the PPUC and other interested parties. Any rate increase approved by the PPUC will be effective no later than March 1, 2023. There can be no assurance that the PPUC will grant the Company's rate increase in the amount requested, if at all. The PPUC permits water utilities to collect a distribution system improvement charge, or DSIC. The DSIC allows the Company to add a charge to customers' bills for qualified replacement costs of certain infrastructure without submitting a rate filing. This surcharge mechanism typically adjusts periodically based on additional qualified capital expenditures completed or anticipated in a future period. The DSIC is capped at 5% of base rates and is reset to zero when new base rates that reflect the costs of those additions become effective or when a utility's earnings exceed a regulatory benchmark.

Pensions

Pensions	6 Months Ended
Pensions	Jun. 30, 2022
Pensions [Abstract]
Pensions	10. Pensions Components of Net Periodic Pension Cost Three Months Ended June 30 Six Months Ended June 30 2022 2021 2022 2021 Service cost $ 256 $ 272 $ 512 $ 543 Interest cost 334 302 668 604 Expected return on plan assets (1,054 ) (913 ) (2,109 ) (1,826 ) Amortization of actuarial loss – 121 – 242 Amortization of prior service cost (3 ) (3 ) (6 ) (6 ) Rate-regulated adjustment 1,042 796 2,085 1,593 Net periodic pension expense $ 575 $ 575 $ 1,150 $ 1,150 Pension service cost is recorded in operating expenses. All other components of net periodic pension cost are recorded as other pension costs in other income (expenses). Employer Contributions The Company previously disclosed in its financial statements for the year ended that it expected to contribute $ to its pension plans in . For the

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
Stock-Based Compensation	Jun. 30, 2022
Stock-Based Compensation [Abstract]
Stock-Based Compensation	11. Stock-Based Compensation On May 2, 2016, the Company’s stockholders approved The York Water Company Long-Term Incentive Plan, or LTIP. The LTIP was adopted to provide the incentive of long-term stock-based awards to officers, directors and key employees. The LTIP provides for the granting of nonqualified stock options, incentive stock options, stock appreciation rights, performance restricted stock grants and units, restricted stock grants and units, and unrestricted stock grants. A maximum of 100,000 shares of common stock may be issued under the LTIP over the ten-year life of the plan. The maximum number of shares of common stock subject to awards that may be granted to any participant in any one calendar year is 2,000. Shares of common stock issued under the LTIP may be treasury shares or authorized but unissued shares. The LTIP will be administered by the Compensation Committee of the Board, or the full Board, provided that the full Board will administer the LTIP as it relates to awards to non-employee directors of the Company. The Company filed a registration statement with the Securities and Exchange Commission on May 11, 2016 covering the offering of stock under the LTIP. The LTIP was effective on July 1, 2016. On May 2, 2022, the Board awarded stock to non-employee directors effective May 2, 2022. This stock award vested immediately. On May 2, 2022, the Compensation Committee awarded restricted stock to officers and key employees effective May 2, 2022. This stock award vests ratably over three years beginning May 2, 2022. The restricted stock awards provide the grantee with the rights of a shareholder, including the right to receive dividends and to vote such shares, but not the right to sell or otherwise transfer the shares during the restriction period. As a result, the awards are included in common shares outstanding on the balance sheet. Restricted stock awards result in compensation expense valued at the fair market value of the stock on the date of the grant and are amortized ratably over the restriction period. The following tables summarize the stock grant amounts and activity for the six months ended June 30, 2022. Number of Shares Grant Date Weighted Average Fair Value Nonvested at beginning of the period 8,804 $46.91 Granted 8,052 $38.87 Vested (4,454) $42.22 Forfeited (33) $51.40 Nonvested at end of the period 12,369 $43.35 For the three months ended June 30, 2022 and 2021, the statement of income includes $113 and $93 of stock-based compensation, respectively, and related recognized tax benefits of $33 and $27, respectively. For the six months ended June 30, 2022 and 2021, the statement of income includes $158 and $121 of stock-based compensation, respectively, and related recognized tax benefits of $46 and $35, respectively. The total fair value of the shares vested in the six months ended June 30, 2022 was $188. Total stock-based compensation related to nonvested awards not yet recognized is $536 which will be recognized over the remaining three year vesting period.

Income Taxes

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2022
Income Taxes [Abstract]
Income Taxes	12. Income Taxes Under the Internal Revenue Service tangible property regulations, or TPR, the Company is permitted to deduct the costs of certain asset improvements that were previously being capitalized and depreciated for tax purposes as an expense on its income tax return. This ongoing deduction results in a reduction in the effective income tax rate, a net reduction in income tax expense, and a reduction in the amount of income taxes currently payable. It also results in increases to deferred tax liabilities and regulatory assets representing the appropriate book and tax basis difference on capital additions. The Company’s effective tax rate was and for the three months ended and , respectively, and and for the and , respectively. On July 8, 2022, the Pennsylvania budget for the fiscal year ending June 30, 2023 was signed into law. A provision within the tax code bill included with the budget provides for an annual phase-down of the Pennsylvania corporate net income tax rate of one percentage point in the first year beginning January 1, 2023 from 9.99% to 8.99%, and a one-half percentage point each year thereafter until it reaches 4.99% beginning January 1, 2031. The Company has not yet determined the amount resulting from the remeasurement of the state portion of its deferred income taxes at these new rates but does not expect the impact to be material. The Company expects any savings in its Pennsylvania current income taxes to be returned to its customers through the rate making process or as a future negative surcharge on their bills.

Revenue (Policies)

Revenue (Policies)	6 Months Ended
Revenue (Policies)	Jun. 30, 2022
Revenue [Abstract]
Revenue	Utility Service The Company provides utility service as a distinct and single performance obligation to each of its water and wastewater customers. The transaction price is detailed in the tariff pursuant to an order by the PPUC and made publicly available. There is no variable consideration and no free service, special rates, or subnormal charges to any customer. Due to the fact that the contract includes a single performance obligation, no judgment is required to allocate the transaction price. The performance obligation is satisfied over time through the continuous provision of utility service through a stand-ready obligation to perform and the transfer of water or the collection of wastewater through a series of distinct transactions that are identical in nature and have the same pattern of transfer to the customer. The Company uses an output method to recognize the utility service revenue over time. The stand-ready obligation is recognized through the passage of time in the form of a fixed charge and the transfer of water or the collection of wastewater is recognized at a per unit rate based on the actual or estimated flow through the meter. Each customer is invoiced every month and the invoice is due within twenty days. The utility service has no returns or warranties associated with it. No revenue is recognized from performance obligations satisfied in prior periods and no performance obligations remain unsatisfied as of the end of the reporting period. A contract asset for unbilled revenue is recognized for the passage of time and the actual or estimated usage from the latest meter reading to the end of the accounting period. The methodology is standardized and consistently applied to reduce bias and the need for judgment. Billing and Revenue Collection Service The Company provides billing and revenue collection service as distinct performance obligations to two municipalities within the service territory of the Company. The municipalities provide service to their residents and the Company acts as the billing and revenue collection agent for the municipalities. The transaction price is a fixed amount per bill prepared as established in the contract. There is no variable consideration. Due to the fact that both the billing performance obligation and the revenue collection performance obligation are materially complete by the end of the reporting period, the Company does not allocate the transaction price between the two performance obligations. The performance obligations are satisfied at a point in time when the bills are sent as the municipalities receive all the benefits and bears all of the risk of non-collection at that time. Each municipality is invoiced when the bills are complete and the invoice is due within thirty days. The billing and revenue collection service has no returns or warranties associated with it. No revenue is recognized from performance obligations satisfied in prior periods and no performance obligations remain unsatisfied as of the end of the reporting period. Collection Service The Company provides collection service as a distinct and single performance obligation to several municipalities within the service territory of the Company. The municipalities provide wastewater service to their residents. If those residents are delinquent in paying for their wastewater service, the municipalities request that the Company post for and shut off the supply of water to the premises of those residents. When the resident is no longer delinquent, the Company will restore water service to the premises. The transaction price for each posting, each shut off, and each restoration is a fixed amount as established in the contract. There is no variable consideration. Due to the fact that the contract includes a single performance obligation, no judgment is required to allocate the transaction price. The performance obligation is satisfied at a point in time when the posting, shut off, or restoration is completed as the municipalities receive all the benefits in the form of payment or no longer providing wastewater service. Each municipality is invoiced periodically for the posting, shut offs, and restorations that have been completed since the last billing and the invoice is due within thirty days. The collection service has no returns or warranties associated with it. No revenue is recognized from performance obligations satisfied in prior periods and no performance obligations remain unsatisfied as of the end of the reporting period. A contract asset for unbilled revenue is recognized for postings, shut offs, and restorations that have been completed from the last billing to the end of the accounting period. Service Line Protection Plan The Company provides service line protection as a distinct and single performance obligation to current water customers that choose to participate. The transaction price is detailed in the plan’s terms and conditions and made publicly available. There is no variable consideration. Due to the fact that the contract includes a single performance obligation, no judgment is required to allocate the transaction price. The performance obligation is satisfied over time through the continuous provision of service line protection through a stand-ready obligation to perform. The Company uses an output method to recognize the service line protection revenue over time. The stand-ready obligation is recognized through the passage of time. A customer has a choice to prepay for an entire year or to pay in advance each month. The service line protection plan has no returns or extended warranties associated with it. No revenue is recognized from performance obligations satisfied in prior periods and no material performance obligations remain unsatisfied as of the end of the reporting period.

Accounts Receivable and Contr_2

Accounts Receivable and Contract Assets (Tables)	6 Months Ended
Accounts Receivable and Contract Assets (Tables)	Jun. 30, 2022
Accounts Receivable and Contract Assets [Abstract]
Accounts Receivable and Contract Assets	Accounts receivable and contract assets are summarized in the following table: As of Jun. 30, 2022 As of Dec. 31, 2021 Change Accounts receivable – customers $ 5,742 $ 5,034 $ 708 Other receivables 352 455 (103 ) 6,094 5,489 605 Less: allowance for doubtful accounts (824 ) (855 ) 31 Accounts receivable, net $ 5,270 $ 4,634 $ 636 Unbilled revenue $ 3,014 $ 2,784 $ 230

Common Stock and Earnings Per_2

Common Stock and Earnings Per Share (Tables)	6 Months Ended
Common Stock and Earnings Per Share (Tables)	Jun. 30, 2022
Common Stock and Earnings Per Share [Abstract]
Shares Used in Computing Basic and Diluted Earnings per Share	The following table summarizes the shares used in computing basic and diluted earnings per share: Three Months Ended June 30 Six Months Ended June 30 2022 2021 2022 2021 Weighted average common shares, basic 14,188,579 13,068,806 13,650,118 13,062,374 Effect of dilutive securities: Employee stock-based compensation 1,123 1,435 1,060 1,088 Weighted average common shares, diluted 14,189,702 13,070,241 13,651,178 13,063,462

Debt (Tables)

Debt (Tables)	6 Months Ended
Debt (Tables)	Jun. 30, 2022
Debt [Abstract]
Debt	For the six months ended June 30, 2022, the Company did not enter into any new long-term debt arrangements or modify its outstanding long-term debt, which is summarized in the table below. As of Jun. 30, 2022 As of Dec. 31, 2021 8.43 $ 7,500 $ 7,500 Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2008A, due 2029 12,000 12,000 3.00 10,500 10,500 3.10 14,870 14,870 3.23 15,000 15,000 4.00 4.50 10,000 10,000 4.54 20,000 20,000 3.24% Senior Notes, due 2050 30,000 30,000 Committed Line of Credit, due September 2023 – 29,320 Total long-term debt 119,870 149,190 Less discount on issuance of long-term debt (164 ) (169 ) Less unamortized debt issuance costs (2,569 ) (2,652 ) Less current maturities (7,500 ) (7,500 ) Long-term portion $ 109,637 $ 138,869

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
Fair Value of Financial Instruments (Tables)	Jun. 30, 2022
Fair Value of Financial Instruments [Abstract]
Fair Value of Interest Rate Swap	The Company has recorded its interest rate swap liability at fair value in accordance with the standards. The liability is recorded under the caption “Other deferred credits” on the balance sheet. The table below illustrates the fair value of the interest rate swap as of the end of the reporting period. Description June 30, 2022 Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2) Interest Rate Swap $1,135 $1,135 Fair values are measured as the present value of all expected future cash flows based on the LIBOR-based swap yield curve as of the date of the valuation. These inputs to this calculation are deemed to be Level 2 inputs. The balance sheet carrying value reflects the Company's credit quality as of June 30, 2022. The rate used in discounting all prospective cash flows anticipated to be made under this swap reflects a representation of the yield to maturity for 30-year debt on utilities rated A- as of June 30, 2022. The use of the Company's credit rating resulted in a reduction in the fair value of the swap liability of $38 as of June 30, 2022. The fair value of the swap reflecting the Company's credit quality as of December 31, 2021 is shown in the table below. Description December 31, 2021 Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2) Interest Rate Swap $2,086 $2,086

Revenue (Tables)

Revenue (Tables)	6 Months Ended
Revenue (Tables)	Jun. 30, 2022
Revenue [Abstract]
Revenues Disaggregated by Service and Customer Type	The following table shows the Company’s revenues disaggregated by service and customer type. Three Months Ended June 30 Six Months Ended June 30 2022 2021 2022 2021 Water utility service: Residential $ 8,819 $ 8,543 $ 17,266 $ 16,688 Commercial and industrial 3,896 3,629 7,484 6,939 Fire protection 836 795 1,672 1,601 Wastewater utility service: Residential 925 474 1,854 945 Commercial and industrial 116 79 225 158 Billing and revenue collection services 84 120 214 239 Collection services 89 11 148 11 Other revenue 5 10 19 20 Total Revenue from Contracts with Customers 14,770 13,661 28,882 26,601 Rents from regulated property 129 140 257 281 Total Operating Revenue $ 14,899 $ 13,801 $ 29,139 $ 26,882

Pensions (Tables)

Pensions (Tables)	6 Months Ended
Pensions (Tables)	Jun. 30, 2022
Pensions [Abstract]
Components of Net Periodic Pension Cost	Components of Net Periodic Pension Cost Three Months Ended June 30 Six Months Ended June 30 2022 2021 2022 2021 Service cost $ 256 $ 272 $ 512 $ 543 Interest cost 334 302 668 604 Expected return on plan assets (1,054 ) (913 ) (2,109 ) (1,826 ) Amortization of actuarial loss – 121 – 242 Amortization of prior service cost (3 ) (3 ) (6 ) (6 ) Rate-regulated adjustment 1,042 796 2,085 1,593 Net periodic pension expense $ 575 $ 575 $ 1,150 $ 1,150

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
Stock-Based Compensation (Tables)	Jun. 30, 2022
Stock-Based Compensation [Abstract]
Restricted Stock	The following tables summarize the stock grant amounts and activity for the six months ended June 30, 2022. Number of Shares Grant Date Weighted Average Fair Value Nonvested at beginning of the period 8,804 $46.91 Granted 8,052 $38.87 Vested (4,454) $42.22 Forfeited (33) $51.40 Nonvested at end of the period 12,369 $43.35

Accounts Receivable and Contr_3

Accounts Receivable and Contract Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Accounts Receivable and Contract Assets [Abstract]
Accounts receivable - customers	$ 5,742	$ 5,034
Other receivables	352	455
Accounts receivable	6,094	5,489
Less: allowance for doubtful accounts	(824)	(855)
Accounts receivable, net	5,270	4,634
Unbilled revenue	3,014	$ 2,784
Change in accounts receivable - customers	708
Change in other receivables	(103)
Change in accounts receivable	605
Change in allowance for doubtful accounts	31
Change in accounts receivable, net	636
Change in unbilled revenue	$ 230

Common Stock and Earnings Per_3

Common Stock and Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended		6 Months Ended
	Apr. 07, 2022	Apr. 07, 2022	Apr. 05, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Mar. 11, 2013
Common Stock and Earnings Per Share [Abstract]
Net income				$ 5,029	$ 4,484	$ 8,888	$ 8,189
Shares Used in Computing Basic and Diluted Earnings per Share [Abstract]
Weighted average common shares, basic (in shares)				14,188,579	13,068,806	13,650,118	13,062,374
Effect of dilutive securities [Abstract]
Employee stock-based compensation (in shares)				1,123	1,435	1,060	1,088
Weighted average common shares, diluted (in shares)				14,189,702	13,070,241	13,651,178	13,063,462
Underwritten Public Offering [Abstract]
Issuance of common stock (in shares)			975,600
Offering price (in dollars per share)			$ 41
Net proceeds from issuance of common stock		$ 43,970
Stock Repurchase Program [Abstract]
Number of shares authorized to be repurchased under the stock repurchase program (in shares)								1,200,000
Number of shares repurchased under the stock repurchase program (in shares)				0	0	0	0
Number of remaining shares authorized to be repurchased under the stock repurchase program (in shares)				618,004		618,004
Underwriter's Option [Member]
Underwritten Public Offering [Abstract]
Issuance of common stock (in shares)	146,340
Offering price (in dollars per share)	$ 41	$ 41

Debt (Details)

Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt [Abstract]
Total long-term debt	$ 119,870	$ 149,190
Less discount on issuance of long-term debt	(164)	(169)
Less unamortized debt issuance costs	(2,569)	(2,652)
Less current maturities	(7,500)	(7,500)
Long-term portion	109,637	138,869
8.43% Senior Notes, Series D, due 2022 [Member]
Debt [Abstract]
Total long-term debt	$ 7,500	7,500
Interest rate	8.43%
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2008A, due 2029 [Member]
Debt [Abstract]
Total long-term debt	$ 12,000	12,000
3.00% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series A of 2019, due 2036 [Member]
Debt [Abstract]
Total long-term debt	$ 10,500	10,500
Interest rate	3%
3.10% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series B of 2019, due 2038 [Member]
Debt [Abstract]
Total long-term debt	$ 14,870	14,870
Interest rate	3.10%
3.23% Senior Notes, due 2040 [Member]
Debt [Abstract]
Total long-term debt	$ 15,000	15,000
Interest rate	3.23%
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 [Member]
Debt [Abstract]
Total long-term debt	$ 10,000	10,000
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 [Member] \| Minimum [Member]
Debt [Abstract]
Interest rate	4%
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 [Member] \| Maximum [Member]
Debt [Abstract]
Interest rate	4.50%
4.54% Senior Notes, due 2049 [Member]
Debt [Abstract]
Total long-term debt	$ 20,000	20,000
Interest rate	4.54%
3.24% Senior Notes, due 2050 [Member]
Debt [Abstract]
Total long-term debt	$ 30,000	30,000
Interest rate	3.24%
Committed Line of Credit, due September 2023 [Member]
Debt [Abstract]
Total long-term debt	$ 0	$ 29,320

Interest Rate Swap Agreement (D

Interest Rate Swap Agreement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Interest Rate Swap Agreement [Abstract]
Total long-term debt	$ 119,870		$ 119,870		$ 149,190
Interest Rate Swap [Member]
Interest Rate Swap Agreement [Abstract]
Notional amount of swap	$ 12,000		$ 12,000
Fixed interest rate	3.16%		3.16%
Net payment rate on swap	2.60%	3.09%	2.75%	3.02%
Interest rate swap settlements reclassified from regulatory assets to interest expense	$ 78	$ 93	$ 168	$ 184
Overall interest rate swap (gain) loss	(281)	$ 212	(775)	$ (219)
Interest rate swap settlements to be reclassified during the next 12 months	154		154
Potential payment to counterparty	$ 1,173		$ 1,173
LIBOR [Member] \| Interest Rate Swap [Member]
Interest Rate Swap Agreement [Abstract]
Percentage of variable interest rate	59%		59%
Term of variable rate			1 month
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2008A, due 2029 [Member]
Interest Rate Swap Agreement [Abstract]
Total long-term debt	$ 12,000		$ 12,000		$ 12,000

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Interest Rate Swap [Abstract]
Term of debt on utilities rated A- used to discount prospective cash flows	30 years
Reduction in fair value of swap liability	$ (38)
Fair Value Measurements [Abstract]
Customers' advances for construction	14,777	$ 12,820
Note receivable	255	255
Fair Value on a Recurring Basis [Member]
Interest Rate Swap [Abstract]
Interest rate swap	1,135	2,086
Fair Value on a Recurring Basis [Member] \| Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2) [Member]
Interest Rate Swap [Abstract]
Interest rate swap	1,135	2,086
Carrying Amount [Member]
Fair Value, Financial Liabilities [Abstract]
Total long-term debt	119,870	149,190
Estimated Fair Value [Member]
Fair Value, Financial Liabilities [Abstract]
Total long-term debt	$ 108,000	$ 168,000

Commitments (Details)

Commitments (Details) $ in Thousands	6 Months Ended
Commitments (Details) $ in Thousands	Jun. 30, 2022 USD ($) ServiceLine	Dec. 31, 2021 USD ($)
Commitments [Abstract]
Capital expenditures committed	$ 39,205
Armor and Replace Spillway of Lake Williams Dam [Member]
Commitments [Abstract]
Remaining committed capital expenditures to be incurred	$ 35,066
Company-Owned Lead Service Lines [Member]
Commitments [Abstract]
Term to replace all remaining company-owned lead service lines	4 years
Customer-Owned Lead Service Lines [Member]
Commitments [Abstract]
Number of lead customer-owned service lines to be replaced annually \| ServiceLine	400
Term of tariff modification to replace customer-owned lead service lines	9 years
Recovery period of regulatory asset	4 years
Costs incurred to replace customer-owned lead service lines	$ 1,482	$ 1,351
Costs to be incurred to replace customer-owned lead service lines	$ 1,700

Revenue (Details)

Revenue (Details) $ in Thousands	3 Months Ended		6 Months Ended
Revenue (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Municipality	Jun. 30, 2021 USD ($)
Revenue [Abstract]
Revenue from contracts with customers	$ 14,770	$ 13,661	$ 28,882	$ 26,601
Rents from regulated property	129	140	257	281
Total operating revenue	14,899	13,801	$ 29,139	26,882
Utility Service [Member]
Revenue [Abstract]
Number of days for customer to make payment after being invoiced			20 days
Water Utility Service [Member] \| Residential [Member]
Revenue [Abstract]
Revenue from contracts with customers	8,819	8,543	$ 17,266	16,688
Water Utility Service [Member] \| Commercial and Industrial [Member]
Revenue [Abstract]
Revenue from contracts with customers	3,896	3,629	7,484	6,939
Water Utility Service [Member] \| Fire Protection [Member]
Revenue [Abstract]
Revenue from contracts with customers	836	795	1,672	1,601
Wastewater Utility Service [Member] \| Residential [Member]
Revenue [Abstract]
Revenue from contracts with customers	925	474	1,854	945
Wastewater Utility Service [Member] \| Commercial and Industrial [Member]
Revenue [Abstract]
Revenue from contracts with customers	116	79	225	158
Billing and Revenue Collection Services [Member]
Revenue [Abstract]
Revenue from contracts with customers	84	120	$ 214	239
Number of municipalities within the service territory provided service \| Municipality			2
Number of days for customer to make payment after being invoiced			30 days
Collection Services [Member]
Revenue [Abstract]
Revenue from contracts with customers	89	11	$ 148	11
Number of days for customer to make payment after being invoiced			30 days
Other Revenue [Member]
Revenue [Abstract]
Revenue from contracts with customers	$ 5	$ 10	$ 19	$ 20

Rate Matters (Details)

Rate Matters (Details) - PPUC [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Rate Request Filed on May 27, 2022 [Member] \| Water [Member]
Rate Matters [Abstract]
Requested annual increase in rates			$ 18,854
Percentage increase in rates			33.80%
Rate Request Filed on May 27, 2022 [Member] \| Wastewater [Member]
Rate Matters [Abstract]
Requested annual increase in rates			$ 1,457
Percentage increase in rates			35%
DSIC [Member]
Rate Matters [Abstract]
Distribution system improvement charge revenue	$ 558	$ 25	$ 962	$ 25
DSIC [Member] \| Maximum [Member]
Rate Matters [Abstract]
Distribution system improvement charge percentage over base rate			5%
DSIC [Member] \| Minimum [Member]
Rate Matters [Abstract]
Distribution system improvement charge percentage over base rate			0%

Pensions (Details)

Pensions (Details) - Pension Plans [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Components of Net Periodic Pension Cost [Abstract]
Service cost	$ 256	$ 272	$ 512	$ 543
Interest cost	334	302	668	604
Expected return on plan assets	(1,054)	(913)	(2,109)	(1,826)
Amortization of actuarial loss	0	121	0	242
Amortization of prior service cost	(3)	(3)	(6)	(6)
Rate-regulated adjustment	1,042	796	2,085	1,593
Net periodic pension expense	575	$ 575	1,150	$ 1,150
Employer Contributions [Abstract]
Estimated employer contributions in 2022					$ 2,300
Contributions made by employer			1,150
Estimated employer contributions in final two quarters of 2022	$ 1,150		$ 1,150

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - LTIP [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	May 02, 2016
Stock-Based Compensation [Abstract]
Maximum number of shares of common stock that can be issued under the plan (in shares)					100,000
Term of plan			10 years
Maximum number of shares of common stock subject to awards that may be granted to a participant per calendar year (in shares)			2,000
Restricted Stock [Member]
Number of Shares [Roll Forward]
Nonvested at beginning of the period (in shares)			8,804
Granted (in shares)			8,052
Vested (in shares)			(4,454)
Forfeited (in shares)			(33)
Nonvested at end of the period (in shares)	12,369		12,369
Grant Date Weighted Average Fair Value [Abstract]
Nonvested at beginning of the period (in dollars per share)			$ 46.91
Granted (in dollars per share)			38.87
Vested (in dollars per share)			42.22
Forfeited (in dollars per share)			51.40
Nonvested at end of the period (in dollars per share)	$ 43.35		$ 43.35
Stock-Based Compensation Expense [Abstract]
Stock-based compensation expense	$ 113	$ 93	$ 158	$ 121
Recognized tax benefits related to stock-based compensation expense	33	$ 27	46	$ 35
Fair value of vested shares			188
Stock-based compensation expense not yet recognized	$ 536		$ 536
Period of recognition			3 years
Restricted Stock [Member] \| Officers and Key Employees [Member]
Stock-Based Compensation [Abstract]
Vesting period			3 years

Income Taxes (Details)

Income Taxes (Details)	3 Months Ended		6 Months Ended
Income Taxes (Details)	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Taxes [Abstract]
Effective tax rate	3.20%	3.40%	(0.70%)	5.20%