Statements of Changes in Stockholders' Equity (Unaudited) - 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, 2020	$ 1,009,958	$ 19,073,213	$ (3,107)	$ 18,797,589	$ (7,650,805)		$ 31,226,848
Balance, beginning, shares at Jun. 30, 2020	2,402,633				627,241
Comprehensive income:
Net income				189,824			189,824
Other comprehensive income (loss), net of tax			(1,674)				(1,674)
Total comprehensive income (loss)							188,150
Stock-based compensation		47,167					47,167
Dividends declared on common stock per share				(600,658)			(600,658)
Balance, ending at Sep. 30, 2020	$ 1,009,958	19,120,380	(4,781)	18,386,755	$ (7,650,805)		30,861,507
Balance, ending, common shares at Sep. 30, 2020	2,402,633				627,241
Balance, beginning 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, beginning, shares at Jun. 30, 2021	2,702,633				427,241		2,702,633
Comprehensive income:
Net income				306,061			$ 306,061
Other comprehensive income (loss), net of tax
Total comprehensive income (loss)							306,061
Stock-based compensation		52,776					52,776
Balance, ending at Sep. 30, 2021	$ 1,043,291	$ 23,078,872	$ (2,361)	$ 17,720,791	$ (6,038,691)	$ (5,110,770)	$ 30,691,132
Balance, ending, common shares at Sep. 30, 2021	2,702,633				427,241		2,702,633