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Borrowings (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Debt Disclosure [Abstract]    
Long-term debt $ 17,000 $ 22,000
Federal Home Loan Bank, Advances, Weighted Average Interest Rate 2.81% 2.68%
Debt, Long-term and Short-term, Combined Amount $ 17,000 $ 22,000
Debt, Weighted Average Interest Rate 2.81% 2.68%
Pledged financial instruments, securities for federal home loan bank $ 296,000 $ 276,000
Line of Credit Facility, Remaining Borrowing Capacity $ 172,600