Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Amortized intangible assets [Abstract]
Gross carrying value	[1]	$ 4,126		$ 4,126		$ 3,629
Accumulated amortization	[1]	(2,588)		(2,588)		(2,283)
Net carrying value	[1]	1,538		1,538		1,346
Unamortized intangible assets [Abstract]
Goodwill	[1]	31,376		31,376		23,296
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		103	$ 110	306	$ 336
Estimated Amortization Expense [Abstract]
Remaining 2020		115		115
2021		405		405
2022		324		324
2023		251		251
2024		183		183
Thereafter		260		260
Mortgage Servicing Rights (MSRs) [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	2,058		2,058		1,718
Accumulated amortization	[1]	(1,220)		(1,220)		(1,077)
Net carrying value	[1]	838		838		641
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		46	44	144	138
Estimated Amortization Expense [Abstract]
Remaining 2020		60		60
2021		213		213
2022		168		168
2023		130		130
2024		98		98
Thereafter		169		169
Core Deposit Intangibles [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	1,943		1,943		1,786
Accumulated amortization	[1]	(1,243)		(1,243)		(1,081)
Net carrying value	[1]	700		700		705
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		57	58	162	174
Estimated Amortization Expense [Abstract]
Remaining 2020		55		55
2021		192		192
2022		156		156
2023		121		121
2024		85		85
Thereafter		91		91
Covenant not to Compete [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	125		125		125
Accumulated amortization	[1]	(125)		(125)		(125)
Net carrying value	[1]	0		0		$ 0
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		0	$ 8	0	$ 24
Estimated Amortization Expense [Abstract]
Remaining 2020		0		0
2021		0		0
2022		0		0
2023		0		0
2024		0		0
Thereafter		$ 0		$ 0

[1] Excludes fully amortized intangible assets