Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2021
Cash flows from operating activities:
Net income	$ 19,728		$ 23,618
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,286		1,265
Deferred taxes	307		(643)
Stock-based compensation	484		213
Provision for credit losses (recovery)	875	$ 500	(2,499)	$ (6,386)
Write-downs of other real estate owned and other repossessed assets	246		154
Gains on sale of mortgage loans held for sale	(597)		(2,433)
Securities gains	0		(60)
Fair value adjustment in equity securities	(99)		228
Gains on sale of assets, net	(5)		(214)
Proceeds from sale of mortgage loans held for sale	26,257		109,014
Funding of mortgage loans held for sale	(24,969)		(101,070)
Amortization of securities premiums and discounts, net	1,801		1,893
Change in cash surrender value of bank owned life insurance	(434)		(337)
Payment of operating lease liabilities	(469)		(445)
Mortgage servicing rights:
Fair value adjustments	(745)		(780)
New servicing assets created	(229)		(736)
Changes in:
Accrued interest receivable	391		630
Other assets	627		1,634
Accrued interest payable	290		122
Other liabilities	2,605		2,152
Net cash provided by operating activities	27,350		31,706
Securities available-for-sale (AFS):
Purchase of AFS securities	(176,730)		(304,167)
Proceeds from sales of AFS securities	0		1,080
Proceeds from prepayments, calls, and maturities of AFS securities	48,630		129,804
Change in loans, net	(106,591)		15,747
Purchase of premises and equipment	(1,072)		(403)
Proceeds from sale and retirement of premises and equipment	0		812
Proceeds from sale of stock by Federal Home Loan Bank	0		77
Proceeds from sale of other real estate owned and repossessed assets	486		762
Proceeds from settlement of bank owned life insurance	1		0
Net cash used in investing activities	(235,276)		(156,288)
Cash flows from financing activities:
Change in deposits, net	84,012		217,690
Change in repurchase agreements and federal funds purchased, net	(16,465)		(1,627)
Payments on advances from Federal Home Loan Bank	(5)		(5)
Payment of finance lease liabilities	(6)		(3)
Issuance of common stock	248		238
Dividends paid	(7,129)		(6,841)
Net cash provided by financing activities	60,655		209,452
Net increase (decrease) in cash and cash equivalents	(147,271)		84,870
Cash and cash equivalents at beginning of period	311,756		338,235	338,235
Cash and cash equivalents at end of period	164,485	$ 311,756	423,105	$ 311,756
Supplemental disclosures:
Income taxes paid	50		87
Interest paid	3,205		3,847
Non-cash activities:
Loans to facilitate the sale of other real estate owned and repossessed assets	597		381
Common stock dividends accrued, paid in subsequent quarter	250		242
Real estate acquired in settlement of loans	$ 137		$ (136)