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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Related Party Loan Rollforward) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Receivables [Abstract]    
Balance at beginning of year $ 1,683 $ 1,855
New loans 325 412
Repayments (376) (584)
Balance at end of year $ 1,632 $ 1,683