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Mortgage Servicing Rights, Net (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Servicing Asset at Amortized Value, Balance [Roll Forward]    
Servicing Asset at Amortized Cost, Beginning $ 1,441 $ 1,644
Servicing Asset at Amortized Value, Additions 41 53
Servicing Asset at Amortized Value, Amortization 72 93
Servicing Asset at Amortized Cost, Ending 1,410 1,604
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance [Abstract]    
Valuation Allowance for Impairment of Recognized Servicing Assets, Beginning Balance 0 0
Valuation Allowance for Impairment of Recognized Servicing Assets, Ending Balance 0 0
Servicing Asset at Amortized Value, Fair Value [Abstract]    
Servicing Asset at Amortized Value, Fair Value, Beginning 2,697 2,528
Servicing Asset at Amortized Value, Fair Value, Ending $ 2,591 $ 2,738