Mortgage Servicing Rights, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Servicing Asset at Amortized Value, Balance [Roll Forward]
Servicing Asset at Amortized Cost, Beginning	$ 1,604	$ 1,862	$ 1,644	$ 1,952
Servicing Asset at Amortized Value, Additions	62	40	115	93
Servicing Asset at Amortized Value, Amortization	117	140	210	284
Servicing Asset at Amortized Value, Valuation Allowance	0	0	0	1
Servicing Asset at Amortized Cost, Ending	1,549	1,762	1,549	1,762
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance [Abstract]
Valuation Allowance for Impairment of Recognized Servicing Assets, Beginning Balance	0	0	0	1
Valuation Allowance for Impairment of Recognized Servicing Assets, Ending Balance	0	0	0	0
Servicing Asset at Amortized Value, Fair Value [Abstract]
Servicing Asset at Amortized Value, Fair Value, Beginning	2,738	2,689	2,528	2,678
Servicing Asset at Amortized Value, Fair Value, Ending	$ 2,659	$ 2,520	$ 2,659	$ 2,520