Statements of Changes in Stockholders' Equity - USD ($)	Common Stock [Member]	Capital in Excess of Par Value [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Unearned ESOP Shares [Member]	Total
Balance, beginning at Jun. 30, 2019	$ 1,009,958	$ 18,731,975	$ (1,299)	$ 20,022,132	$ (7,632,556)	$ (204,706)	$ 31,925,504
Balance, beginning, shares at Jun. 30, 2019	2,401,213				628,661		2,401,213
Net income (loss)				1,163,668			$ 1,163,668
Other comprehensive income loss, net of tax			(1,808)				(1,808)
Total comprehensive income (loss)							1,161,860
Stock options exercised		51,300			$ 29,700		81,000
Stock options exercised, shares	3,600				(3,600)
Stock-based compensation		189,639					189,639
Dividends paid on common stock per share				(2,388,211)			(2,388,211)
Purchase of treasury stock					$ (47,949)		(47,949)
Purchase of treasury stock, shares	(2,180)				2,180
Reduction of unearned ESOP shares		100,299				204,706	305,005
Balance, ending at Jun. 30, 2020	$ 1,009,958	19,073,213	(3,107)	18,797,589	$ (7,650,805)		$ 31,226,848
Balance, ending, common shares at Jun. 30, 2020	2,402,633				627,241		2,402,633
Net income (loss)				(181,543)			$ (181,543)
Other comprehensive income loss, net of tax			746				746
Total comprehensive income (loss)							$ (180,797)
Stock options exercised, shares
Stock-based compensation		133,663					$ 133,663
Dividends paid on common stock per share				(1,201,316)			(1,201,316)
Sale of stock to ESOP	$ 33,333	3,841,553			$ 1,612,114	(5,487,000)
Sale of stock to ESOP, shares	300,000				(200,000)
Reduction of unearned ESOP shares		(22,333)				376,230	353,897
Balance, ending at Jun. 30, 2021	$ 1,043,291	$ 23,026,096	$ (2,361)	$ 17,414,730	$ (6,038,691)	$ (5,110,770)	$ 30,332,295
Balance, ending, common shares at Jun. 30, 2021	2,702,633				427,241		2,702,633