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Other Real Estate Owned (Summary of Other Real Estate Owned) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Other Real Estate Owned [Line Items]    
Balance, beginning of period $ 552 $ 6,019
Transfers in 1,033 386
Valuation adjustments (70) (195)
Proceeds from Sale of Wholly Owned Real Estate and Real Estate Acquired in Settlement of Loans (1,066) (6,455)
Gain on sale of OREO, net 104 797
Balance, end of period 553 $ 552
Real estate: One-to-four family residential    
Other Real Estate Owned [Line Items]    
Balance, end of period $ 0