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Summary of Significant Accounting Policies (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Line Items]    
Average required reserve balance   $ 89,200,000
Compensating Balance, Amount $ 0  
Other Repossessed Assets 3,600,000 4,200,000
Finite-Lived Intangible Assets, Accumulated Amortization 6,496,000 4,233,000
Financing Receivable, Allowance for credit loss on acquired performing credit 678,000  
Trade Names [Member]    
Accounting Policies [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization $ 1,300,000 $ 1,300,000