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Borrowings and Line of Credit (Borrowing capacity and loans secured for advances) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Federal Reserve Bank    
Debt Instrument [Line Items]    
Maximum funding capacity $ 149,219 $ 6,994
Additional funding capacity 149,219 6,994
Loans secured for borrowings 258,774 9,562
Federal Home Loan Bank Advances    
Debt Instrument [Line Items]    
Maximum funding capacity 194,445 156,059
FHLB advances (75,000) (25,000)
Secured lines of credit (83,982) (83,982)
Additional funding capacity 35,463 47,077
Loans secured for borrowings $ 281,670 $ 554,371