Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands | Two Thousand Eighteen Dividend Reinvestment and Stock Purchase Plan [Member] Common Stock [Member] | Two Thousand Eighteen Dividend Reinvestment and Stock Purchase Plan [Member] Common Stock Including Additional Paid in Capital [Member] | Two Thousand Eighteen Dividend Reinvestment and Stock Purchase Plan [Member] Retained Earnings [Member] | Two Thousand Eighteen Dividend Reinvestment and Stock Purchase Plan [Member] | Two Thousand Twenty Four Dividend Reinvestment and Stock Purchase Plan [Member] Common Stock [Member] | Two Thousand Twenty Four Dividend Reinvestment and Stock Purchase Plan [Member] Common Stock Including Additional Paid in Capital [Member] | Two Thousand Twenty Four Dividend Reinvestment and Stock Purchase Plan [Member] Retained Earnings [Member] | Two Thousand Twenty Four Dividend Reinvestment and Stock Purchase Plan [Member] | Common Stock [Member] | Common Stock Including Additional Paid in Capital [Member] | Retained Earnings [Member] | Total |
Balance (in shares) | | | | | | | | | 7,571,741 | | | |
Balance (in shares) at Sep. 30, 2022 | | | | | | | | | 7,571,741 | | | |
Balance at Sep. 30, 2022 | | | | | | | | | | $ 20,951 | $ 65,347 | $ 86,298 |
Net income | | | | | | | | | | 0 | 1,119 | 1,119 |
Dividends paid | | | | | | | | | | 0 | (1,041) | (1,041) |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | 215 | | | | | | | | | | | |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | $ 2 | $ 0 | $ 2 | | | | | | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | 1,750 | | | | | | | | | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | 15 | 0 | 15 | | | | | | | | |
Stock-based compensation | | | | | | | | | | 262 | 0 | 262 |
Balance (in shares) at Dec. 31, 2022 | | | | | | | | | 7,573,706 | | | |
Balance at Dec. 31, 2022 | | | | | | | | | | 21,230 | 65,425 | 86,655 |
Balance (in shares) at Sep. 30, 2022 | | | | | | | | | 7,571,741 | | | |
Balance at Sep. 30, 2022 | | | | | | | | | | 20,951 | 65,347 | 86,298 |
Net income | | | | | | | | | | | | 3,430 |
Balance (in shares) at Jun. 30, 2023 | | | | | | | | | 7,578,432 | | | |
Balance at Jun. 30, 2023 | | | | | | | | | | 21,772 | 65,653 | 87,425 |
Balance (in shares) | | | | | | | | | 7,573,706 | | | |
Balance (in shares) at Dec. 31, 2022 | | | | | | | | | 7,573,706 | | | |
Balance at Dec. 31, 2022 | | | | | | | | | | 21,230 | 65,425 | 86,655 |
Net income | | | | | | | | | | 0 | 1,195 | 1,195 |
Dividends paid | | | | | | | | | | 0 | (1,041) | (1,041) |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | 199 | | | | | | | | | | | |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | 2 | 0 | 2 | | | | | | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | 1,924 | | | | | | | | | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | 16 | 0 | 16 | | | | | | | | |
Stock-based compensation | | | | | | | | | | 262 | 0 | 262 |
Balance (in shares) at Mar. 31, 2023 | | | | | | | | | 7,575,829 | | | |
Balance at Mar. 31, 2023 | | | | | | | | | | 21,510 | 65,579 | 87,089 |
Balance (in shares) | | | | | | | | | 7,575,829 | | | |
Net income | | | | | | | | | | 0 | 1,116 | 1,116 |
Dividends paid | | | | | | | | | | 0 | (1,042) | (1,042) |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | | | | | | | | | 402 | | | |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | | | | | | | | | 3 | 0 | 3 |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | | | | | | | | | 2,201 | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | | | | | | | | | 16 | 0 | 16 |
Stock-based compensation | | | | | | | | | | 260 | 0 | 260 |
Balance (in shares) at Jun. 30, 2023 | | | | | | | | | 7,578,432 | | | |
Employee restricted stock forfeiture | | | | | | | | | | (17) | 0 | (17) |
Employee restricted stock forfeiture | | | | | | | | | | 17 | 0 | 17 |
Balance at Jun. 30, 2023 | | | | | | | | | | 21,772 | 65,653 | 87,425 |
Balance (in shares) | | | | | | | | | 7,578,432 | | | |
Balance (in shares) | | | | | | | | | 7,671,099 | | | |
Balance (in shares) at Sep. 30, 2023 | | | | | | | | | 7,671,099 | | | |
Balance at Sep. 30, 2023 | | | | | | | | | | 21,800 | 65,952 | 87,752 |
Net income | | | | | | | | | | 0 | 1,200 | 1,200 |
Dividends paid | | | | | | | | | | 0 | (1,055) | (1,055) |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | 145 | | | | | | | | | | | |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | 1 | 0 | 1 | | | | | | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | 2,625 | | | | | | | | | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | 17 | 0 | 17 | | | | | | | | |
Stock-based compensation | | | | | | | | | | 246 | 0 | 246 |
Balance (in shares) at Dec. 31, 2023 | | | | | | | | | 7,673,869 | | | |
Balance at Dec. 31, 2023 | | | | | | | | | | 22,064 | 66,097 | 88,161 |
Balance (in shares) at Sep. 30, 2023 | | | | | | | | | 7,671,099 | | | |
Balance at Sep. 30, 2023 | | | | | | | | | | 21,800 | 65,952 | 87,752 |
Net income | | | | | | | | | | | | 4,769 |
Balance (in shares) at Jun. 30, 2024 | | | | | | | | | 7,681,007 | | | |
Balance at Jun. 30, 2024 | | | | | | | | | | 22,607 | 67,556 | 90,163 |
Balance (in shares) | | | | | | | | | 7,673,869 | | | |
Balance (in shares) at Dec. 31, 2023 | | | | | | | | | 7,673,869 | | | |
Balance at Dec. 31, 2023 | | | | | | | | | | 22,064 | 66,097 | 88,161 |
Net income | | | | | | | | | | 0 | 1,540 | 1,540 |
Dividends paid | | | | | | | | | | 0 | (1,055) | (1,055) |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | 1,100 | | | | 669 | | | | | | | |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | $ 8 | $ 0 | $ 8 | | $ 5 | $ 0 | $ 5 | | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | | | | | 2,577 | | | | | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | | | | | $ 17 | $ 0 | $ 17 | | | | |
Stock-based compensation | | | | | | | | | | 246 | 0 | 246 |
Balance (in shares) at Mar. 31, 2024 | | | | | | | | | 7,678,215 | | | |
Balance at Mar. 31, 2024 | | | | | | | | | | 22,340 | 66,582 | 88,922 |
Balance (in shares) | | | | | | | | | 7,678,215 | | | |
Net income | | | | | | | | | | 0 | 2,029 | 2,029 |
Dividends paid | | | | | | | | | | 0 | (1,055) | (1,055) |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | | | | | | | | | 392 | | | |
Shares issued for auto-investments pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | | | | | | | | | 2 | 0 | 2 |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan (in shares) | | | | | | | | | 2,400 | | | |
Shares issued for dividend reinvestment pursuant to the 2021 Dividend Reinvestment and Stock Purchase Plan | | | | | | | | | | 18 | 0 | 18 |
Stock-based compensation | | | | | | | | | | 247 | 0 | 247 |
Balance (in shares) at Jun. 30, 2024 | | | | | | | | | 7,681,007 | | | |
Balance at Jun. 30, 2024 | | | | | | | | | | $ 22,607 | $ 67,556 | $ 90,163 |
Balance (in shares) | | | | | | | | | 7,681,007 | | | |