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Income Taxes - Income tax rate reconciliation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Effective income tax rate reconciliation, amount    
Computed "expected" tax expense $ 2,004 $ 1,362
Bank-owned life insurance (20) (20)
Tax-exempt interest income (36) (31)
State income taxes, net of federal benefit 122 91
Excess tax benefit on share-based compensation (214) (6)
Other, net 14 18
Total $ 1,870 $ 1,414