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Fair Value (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Fair value assets liabilities transfers amount between level 1 and level 2 $ 0 $ 0 $ 0 $ 0  
Troubled debt restructurings 4,000   $ 4,000   $ 4,100
Maximum maturity period of short term borrowings     90 days    
Measured Using Present Value of Cash Flows          
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Troubled debt restructurings 591   $ 591   513
Collateral Dependent Loans          
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Collateral dependent loans, unpaid principal balance with allowance recorded 5,500   5,500    
Collateral dependent loans, allowance $ 1,200   $ 1,200    
Collateral Dependent Impaired Loans          
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Impaired loans, unpaid principal balance with allowance recorded         2,300
Impaired loans, allowance         $ 368