Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash Flows from Operating Activities:
Net income	$ 1,598,317	$ 1,094,544
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	101,492	55,653
Depreciation	109,381	119,392
ESOP compensation expense	123,194	89,189
Deferred income tax expense (benefit)	43,792	(213,813)
Changes in assets and liabilities:
Increase in trade accounts receivable	(383,333)	(172,224)
Decrease in income taxes receivable		35,666
(Increase) decrease in inventories	(191,658)	634,314
Decrease in prepaid expenses and other current assets	238,048	245,730
Increase in accounts payable	170,683	700,799
(Decrease) increase in accrued salaries and wages	(270,980)	199,658
Increase (decrease) in vacation accrual	15,102	(111,453)
Decrease in ESOP payable	(52,871)
Increase (decrease) in other accrued expenses	105,012	(23,443)
Increase (decrease) in payroll and other taxes withheld	2,205	(5,827)
Decrease in contract liabilities	(327,812)	(500,748)
Increase in income taxes payable	108,542	467,346
Net cash provided by operating activities	1,389,114	2,614,783
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(664,351)	(2,228,802)
Proceeds from grant award		968,722
Purchase of investment securities	(7,258,418)	(4,758,705)
Proceeds from sale/maturity of investment securities	7,484,000	3,660,437
Net cash used in investing activities	(438,769)	(2,358,348)
Cash Flows from Financing Activities:
Dividends on common stock	(633,243)
Proceeds from exercise of stock options	144,826	59,480
Net cash (used in) provided by financing activities	(488,417)	59,480
Increase in cash and cash equivalents	461,928	315,915
Cash and cash equivalents, beginning of period	4,351,970	2,748,755
Cash and cash equivalents, end of period	4,813,898	3,064,670
Supplemental Schedule of Cash Flow Information:
Income taxes paid	250,000
Supplemental Schedule of Non-cash Financing Activities:
Accrual of Dividends		$ 405,995