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Other Borrowings (Details) - USD ($)
$ in Thousands
9 Months Ended
May 21, 2021
Sep. 30, 2021
Sep. 30, 2020
Other Borrowings.      
Proceeds from FHLB Advance $ 5,000 $ 5,000 $ 4,000
Repayment of FHLB Advance $ 4,000 $ 4,000