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Loans Receivable and Allowance for Loan Losses (Changes in the Accretable Yield for Purchased Credit Impaired Loans) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Loans Receivable and Allowance for Loan Losses [Abstract]    
Balance at beginning of period $ 29
Additions 1,724
Accretion (353) (29)
Reclassification and other (6)
Balance at end of period $ 1,365