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 (loss):
Net income (loss)				(1,061,297)			(1,061,297)
Other comprehensive income (loss), net of tax			871				871
Total comprehensive income (loss)							(1,060,426)
Stock-based compensation		106,286					106,286
Dividends paid on common stock $0.50 per share				(1,201,316)			(1,201,316)
Sales of stock to ESOP	$ 33,333	3,841,553			$ 1,612,114	(5,487,000)
Sales of stock to ESOP, shares	300,000				(200,000)
Balance, ending at Mar. 31, 2021	$ 1,043,291	23,021,052	(2,236)	16,534,976	$ (6,038,691)	(5,487,000)	29,071,392
Balance, ending, common shares at Mar. 31, 2021	2,702,633				427,241
Balance, beginning at Dec. 31, 2020	$ 1,043,291	22,995,640	(2,069)	17,605,090	$ (6,038,691)	(5,487,000)	30,116,261
Balance, beginning, shares at Dec. 31, 2020	2,702,633				427,241
Comprehensive income (loss):
Net income (loss)				(1,070,114)			(1,070,114)
Other comprehensive income (loss), net of tax			(167)				(167)
Total comprehensive income (loss)							(1,070,281)
Stock-based compensation		25,412					25,412
Balance, ending at Mar. 31, 2021	$ 1,043,291	23,021,052	(2,236)	16,534,976	$ (6,038,691)	(5,487,000)	29,071,392
Balance, ending, common shares at Mar. 31, 2021	2,702,633				427,241
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 (loss):
Net income (loss)				988,621			$ 988,621
Other comprehensive income (loss), net of tax			838				838
Total comprehensive income (loss)							989,459
Stock-based compensation		134,266					134,266
Balance, ending at Mar. 31, 2022	$ 1,043,291	23,160,362	(1,523)	18,403,351	$ (6,038,691)	(5,110,770)	$ 31,456,020
Balance, ending, common shares at Mar. 31, 2022	2,702,633				427,241		2,702,633
Balance, beginning at Dec. 31, 2021	$ 1,043,291	23,120,663	(2,361)	17,741,992	$ (6,038,691)	(5,110,770)	$ 30,754,124
Balance, beginning, shares at Dec. 31, 2021	2,702,633				427,241
Comprehensive income (loss):
Net income (loss)				661,359			661,359
Other comprehensive income (loss), net of tax			838				838
Total comprehensive income (loss)							662,197
Stock-based compensation		39,699					39,699
Balance, ending at Mar. 31, 2022	$ 1,043,291	$ 23,160,362	$ (1,523)	$ 18,403,351	$ (6,038,691)	$ (5,110,770)	$ 31,456,020
Balance, ending, common shares at Mar. 31, 2022	2,702,633				427,241		2,702,633