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Note 11 - Earnings Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Net income (loss) | $ 149 | $ 67 | $ (130) | $ (14)
Average number of common shares outstanding (in shares) | 5,397,959 |  | 4,861,145 |
Less: Average unallocated ESOP shares (in shares) | 426,029 |  | 385,231 |
Average number of common shares oustanding used to calculate basic earnings per common share (in shares) | 4,971,930 |  | 4,475,914 |
Earnings (loss) per common share basic and diluted (in dollars per share) | $ 0.03 |  | $ (0.03) |

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