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Other Real Estate Owned (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Summary Other Real Estate Owned [Abstract]      
Real estate acquired in settlement of loans $ 584 $ 1,012  
Real Estate Owned Valuation Allowance [Roll Forward]      
Balance at beginning of year 53 205 $ 162
Losses charged to allowance (53) (169) (89)
Provision charged to operating expenses 0 17 132
Balance at end of year $ 0 $ 53 $ 205