Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Amortized intangible assets [Abstract]
Gross carrying value	[1]	$ 3,749		$ 3,749		$ 3,636
Accumulated amortization	[1]	(2,349)		(2,349)		(2,013)
Net carrying value	[1]	1,400		1,400		1,623
Unamortized intangible assets [Abstract]
Goodwill		23,296		23,296		23,296
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		110	$ 120	336	$ 367
Estimated Amortization Expense [Abstract]
Remaining 2019		109		109
2020		364		364
2021		296		296
2022		233		233
2023		173		173
MSRs [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	1,838		1,838		1,725
Accumulated amortization	[1]	(1,204)		(1,204)		(1,066)
Net carrying value	[1]	634		634		659
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		44	46	138	143
Estimated Amortization Expense [Abstract]
Remaining 2019		48		48
2020		167		167
2021		131		131
2022		100		100
2023		73		73
Core Deposit Intangibles [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	1,786		1,786		1,786
Accumulated amortization	[1]	(1,025)		(1,025)		(851)
Net carrying value	[1]	761		761		935
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		58	66	174	200
Estimated Amortization Expense [Abstract]
Remaining 2019		56		56
2020		197		197
2021		165		165
2022		133		133
2023		100		100
Covenant not to Compete [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	125		125		125
Accumulated amortization	[1]	(120)		(120)		(96)
Net carrying value	[1]	5		5		$ 29
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		8	$ 8	24	$ 24
Estimated Amortization Expense [Abstract]
Remaining 2019		5		5
2020		0		0
2021		0		0
2022		0		0
2023		$ 0		$ 0

[1] Excludes fully amortized intangible assets.