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, 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 | | |
Comprehensive income (loss): | | | | | | | |
Net income (loss) | | | | 310,740 | | | 310,740 |
Other comprehensive income (loss), net of tax | | | (158) | | | | (158) |
Total comprehensive income (loss) | | | | | | | 310,582 |
Stock options exercised | | 33,780 | | | $ 16,500 | | 50,280 |
Stock options exercised, shares | 2,000 | | | | (2,000) | | |
Stock-based compensation | | 92,447 | | | | | 92,447 |
Dividends paid on common stock per share | | | | (1,193,977) | | | (1,193,977) |
Purchase of treasury stock | | | | | $ (47,949) | | (47,949) |
Purchase of treasury stock, shares | (2,180) | | | | 2,180 | | |
Balance, ending at Dec. 31, 2019 | $ 1,009,958 | 18,858,202 | (1,457) | 19,138,895 | $ (7,664,005) | (204,706) | 31,136,887 |
Balance, ending, common shares at Dec. 31, 2019 | 2,401,033 | | | | 628,841 | | |
Balance, beginning at Sep. 30, 2019 | $ 1,009,958 | 18,812,931 | (1,102) | 19,506,648 | $ (7,624,347) | (204,706) | 31,499,382 |
Balance, beginning, shares at Sep. 30, 2019 | 2,402,880 | | | | 626,994 | | |
Comprehensive income (loss): | | | | | | | |
Net income (loss) | | | | 228,964 | | | 228,964 |
Other comprehensive income (loss), net of tax | | | (355) | | | | (355) |
Total comprehensive income (loss) | | | | | | | 228,609 |
Stock-based compensation | | 45,271 | | | | | 45,271 |
Dividends paid on common stock per share | | | | (596,717) | | | (596,717) |
Purchase of treasury stock | | | | | $ (39,658) | | (39,658) |
Purchase of treasury stock, shares | (1,847) | | | | 1,847 | | |
Balance, ending at Dec. 31, 2019 | $ 1,009,958 | 18,858,202 | (1,457) | 19,138,895 | $ (7,664,005) | (204,706) | 31,136,887 |
Balance, ending, common shares at Dec. 31, 2019 | 2,401,033 | | | | 628,841 | | |
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 | | 2,402,633 |
Comprehensive income (loss): | | | | | | | |
Net income (loss) | | | | 8,817 | | | $ 8,817 |
Other comprehensive income (loss), net of tax | | | 1,038 | | | | 1,038 |
Total comprehensive income (loss) | | | | | | | $ 9,855 |
Stock options exercised, shares | | | | | | | |
Stock-based compensation | | 80,874 | | | | | $ 80,874 |
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) | | |
Balance, ending 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, ending, common shares at Dec. 31, 2020 | 2,702,633 | | | | 427,241 | | 2,702,633 |
Balance, beginning at Sep. 30, 2020 | $ 1,009,958 | 19,120,380 | (4,781) | 18,386,755 | $ (7,650,805) | | $ 30,861,507 |
Balance, beginning, shares at Sep. 30, 2020 | 2,402,633 | | | | 627,241 | | |
Comprehensive income (loss): | | | | | | | |
Net income (loss) | | | | (181,006) | | | (181,006) |
Other comprehensive income (loss), net of tax | | | 2,712 | | | | 2,712 |
Total comprehensive income (loss) | | | | | | | (178,294) |
Stock-based compensation | | 33,707 | | | | | 33,707 |
Dividends paid on common stock per share | | | | (600,659) | | | (600,659) |
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) | | |
Balance, ending 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, ending, common shares at Dec. 31, 2020 | 2,702,633 | | | | 427,241 | | 2,702,633 |