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Loans - Troubled Debt Restructurings (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Loans    
Recorded investment of troubled debt restructurings $ 1,039,000 $ 649,000
Troubled debt restructurings, nonaccrual loans 590,000 36,000
Troubled debt restructurings, accruing loans 449,000 613,000
Specific reserves 20,000 38,000
Additional loan committed on any loans classified as troubled debt restructuring. $ 0 $ 0