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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
9. Income Taxes                      
Current expense                 $ 4,079 $ 3,049 $ 2,972
Deferred income tax expense                 (283) (560) 164
Total income tax $ 732 $ 824 $ 1,194 $ 1,046 $ 374 $ 1,113 $ 535 $ 467 $ 3,796 $ 2,489 $ 3,136