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Other Real Estate and Repossessed Assets (Details 2) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Summary of activity in valuation allowance for other real estate owned in settlement of loans        
Balance, beginning of period $ 3,022 $ 3,174 $ 3,221 $ 3,129
Provision for other real estate owned 0 28 26 243
Charge-offs (20) 0 (245) (170)
Balance, end of period $ 3,002 $ 3,202 $ 3,002 $ 3,202