The Company’s provision for income taxes for the three months ended December 31, 2023 increased by $1,338,000 to $1,924,000 as compared to $586,000 for the same period a year ago. The increase in the provision for income taxes for the three months was primarily due to higher taxable income in the U.S. The Company’s effective rate for income tax was 13.2% and 13.0% for the three months ended December 31, 2023 and 2022 respectively. The Company’s provision for income taxes for the six months ended December 31, 2023 increased by $2,394,000 to $3,441,000 as compared to $1,047,000 for the same period a year ago. The increase in the provision for income taxes for the three months was primarily due to higher taxable income in the U.S. The Company’s effective rate for income tax was 13.0% for the both the six months ended December 31, 2023 and 2022 respectively.
Net income for the three months ended December 31, 2023 increased by $8,681,000 to $12,610,000 or $0.34 per diluted share as compared to $3,929,000 or $0.11 per diluted share for the same period a year ago. Net income for the six months ended December 31, 2023 increased by $16,075,000 to $23,088,000 or $0.62 per diluted share as compared to $7,013,000 or $0.19 per diluted share for the same period a year ago. The increase in net income for the three and six months ended December 31, 2023 was primarily due to the items described above.
Liquidity and Capital Resources
The Company has cash, certificates of deposit (“CD”) which mature within 12 months, and marketable securities which aggregate to $79 million. During the six months ended December 31, 2023, the Company utilized a portion of its cash balance at June 30, 2023 ($117,000 of $35,955,000) to purchase marketable securities and other investments ($655,000) and property, plant and equipment ($682,000). The securities and investments consist of money market accounts, CD’s and time deposits. During the six months ended December 31, 2023, the Company generated cash flows from operations of $18,693,000. The Company believes its current working capital, cash flows from operations and its revolving credit agreement will be sufficient to fund the Company’s operations through the next twelve months.
Accounts receivable at December 31, 2023 increased by $1,483,000 to $27,552,000 as compared to $26,069,000 at June 30, 2023. This increase was due primarily to initial sales of intrusion products to a large, new customer during the quarter ended December 31, 2023.
Inventories, which include both current and non-current portions, increased by $4,285,000 to $52,634,000 at December 31, 2023 as compared to $48,349,000 at June 30, 2023. The increase was due primarily to a build-up of inventory of the Company’s radio products in order to mitigate potential supply chain interruptions of these products. The increase was also due to the ongoing shortages of certain component parts and the Company purchasing large quantities of these hard-to-source component parts when they became available, even after the prices came down.
Accounts payable and accrued expenses, not including income taxes payable, increased by $1,525,000 to $21,211,000 as of December 31, 2023 as compared to $19,686,000 as of June 30, 2023. This increase is primarily due to an increase in accounts payable, which was the result of a large increase in the amount of component part purchases occurring towards the end of the quarter ended December 31, 2023 as compared to those purchases made towards the end of the quarter ended June 30, 2023. The increase is partially offset by a decrease in the accrued refund liabilities.
As of December 31, 2023 and 2022, long-term debt consisted of a revolving line of credit of $11,000,000 (“Revolver Agreement”), with no amounts outstanding, which expires in June 2024. The revolving credit facility contains various restrictions and covenants including, among others, restrictions on borrowings and compliance with certain financial ratios, as defined in the agreement. The Company’s long-term debt is described more fully in Note 8 to the condensed consolidated financial statements.
As of December 31, 2023, the Company had no material commitments for capital expenditures or inventory purchases other than purchase orders issued in the normal course of business. In addition, the Company’s balance sheet reflects a refund liability of $4,612,000 as of December 31, 2023 for customer returns and promotional credits which is more fully discussed in Note 2 to the condensed consolidated financial statements.