Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Amortized intangible assets [Abstract]
Gross carrying value	[1]	$ 4,245		$ 4,096
Accumulated amortization	[1]	(2,549)		(2,428)
Net carrying value	[1]	1,696		1,668
Unamortized intangible assets [Abstract]
Goodwill	[1]	31,376		31,376
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		121	$ 98
Estimated Amortization Expense [Abstract]
Remaining 2021		362
2022		397
2023		311
2024		232
2025		160
Thereafter		234
Mortgage Servicing Rights (MSRs) [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	2,302		2,153
Accumulated amortization	[1]	(1,203)		(1,131)
Net carrying value	[1]	1,099		1,022
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		72	48
Estimated Amortization Expense [Abstract]
Remaining 2021		219
2022		241
2023		190
2024		147
2025		110
Thereafter		192
Core Deposit Intangibles [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	1,943		1,943
Accumulated amortization	[1]	(1,346)		(1,297)
Net carrying value	[1]	597		$ 646
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		49	$ 50
Estimated Amortization Expense [Abstract]
Remaining 2021		143
2022		156
2023		121
2024		85
2025		50
Thereafter		$ 42

[1] Excludes fully amortized intangible assets