Core Deposits and Other Intangible Assets - Activity of Core Deposits and Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-lived Intangible Assets [Roll Forward]
Amortization	$ (1,417)	$ (1,485)	$ (1,896)
Balance, end of year	6,450
Intangible Assets, Net (Excluding Goodwill) [Roll Forward]
Balance, beginning of year	9,667	9,902	11,798
Additions		1,250
Amortization	(1,417)	(1,485)	(1,896)
Balance, end of year	8,250	9,667	9,902
Core Deposits Intangibles
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of year	6,211	7,578	9,379
Additions		0
Amortization	(1,212)	(1,367)	(1,801)
Balance, end of year	4,999	6,211	7,578
Intangible Assets, Net (Excluding Goodwill) [Roll Forward]
Amortization	(1,212)	(1,367)	(1,801)
Customer Relationships
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of year	1,656	524	581
Additions		1,250
Amortization	(205)	(118)	(57)
Balance, end of year	1,451	1,656	524
Intangible Assets, Net (Excluding Goodwill) [Roll Forward]
Amortization	(205)	(118)	(57)
Non-compete agreements
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of year	0	0	38
Additions		0
Amortization	0	0	(38)
Balance, end of year	0	0	0
Intangible Assets, Net (Excluding Goodwill) [Roll Forward]
Amortization	0	0	(38)
Tradenames
Indefinite-lived Intangible Assets [Roll Forward]
Balance, beginning of year	1,800	1,800	1,800
Additions		0
Balance, end of year	$ 1,800	$ 1,800	$ 1,800