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Business Combination, Unaudited pro forma information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Unaudited pro forma information [Abstract] |  |  |  |
Net interest income | $ 5,978 | $ 5,738 | $ 16,988 | $ 16,068
Net income (loss) | $ 191 | $ (343) | $ (3,348) | $ (157)
Basic earnings per share (in dollars per share) | $ 0.00 | $ (0.01) | $ (0.05) | $ 0.00
Diluted earnings per share (in dollars per share) | $ 0.00 | $ (0.01) | $ (0.05) | $ 0.00

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