Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest income
Interest and fees on loans	$ 124,605	$ 131,678	$ 141,388
Securities	5,736	4,768	5,954
Interest-bearing deposits at other financial institutions	1,123	1,568	5,333
Equity investments	629	679	720
Total interest income	132,093	138,693	153,395
Interest expense
Deposits	5,024	9,168	15,999
Federal Home Loan Bank advances	885	903	1,386
Other interest-bearing liabilities	17	16	22
Total interest expense	5,926	10,087	17,407
Net interest income	126,167	128,606	135,988
Provision (recapture) for credit losses:
Provision (recapture) for credit losses for loans	(9,862)	18,074	2,385
Provision (recapture) for credit losses for unfunded commitments	(911)	818
Total provision (recapture) for credit losses	(10,773)	18,892	2,385
Net interest income after provision (recapture) for credit losses	136,940	109,714	133,603
Noninterest income
Total noninterest income	16,264	14,781	18,628
Noninterest expense
Salaries and employee benefits	60,531	55,415	56,222
Occupancy expense	10,384	10,106	9,506
Professional and director fees	6,467	8,348	7,048
Data processing and software	6,582	5,369	4,435
Regulatory fees	9,901	1,798	1,138
Advertising, marketing and business development	1,551	1,500	1,831
Telephone and communications	2,000	1,752	1,774
Security and protection expense	1,791	1,447	1,464
Amortization of intangibles	738	846	894
Other expenses	7,741	5,519	5,831
Total noninterest expense	107,686	92,100	90,143
Net income before income tax expense	45,518	32,395	62,088
Income tax expense	9,920	6,034	11,571
Net income	$ 35,598	$ 26,361	$ 50,517
Earnings per common share
Basic	$ 1.46	$ 1.06	$ 2.03
Diluted	$ 1.45	$ 1.06	$ 2.02
Deposit account service charges
Noninterest income
Revenue from Contract with Customer, Excluding Assessed Tax	$ 5,082	$ 5,026	$ 6,554
Card interchange fees
Noninterest income
Revenue from Contract with Customer, Excluding Assessed Tax	4,200	3,831	3,720
Earnings on bank-owned life insurance
Noninterest income
Revenue Not from Contract with Customer, Excluding Interest Income	3,488	2,422	5,011
Net gain on sales of assets
Noninterest income
Revenue Not from Contract with Customer, Excluding Interest Income	1,828	755	652
Other.
Noninterest income
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1,666	$ 2,747	$ 2,691