CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest income
Loans, including fees	$ 92,497	$ 93,335	$ 90,980
Securities
Taxable	4,762	4,565	5,916
Nontaxable	4,218	4,189	3,830
Federal funds sold and interest-bearing deposits	1,073	953	1,835
Total interest income	102,550	103,042	102,561
Interest expense
Deposits	5,651	11,624	21,611
FHLB advances and federal funds purchased	413	470	1,389
Subordinated debentures	700	702	648
Other borrowed money	228	264	43
Total interest expense	6,992	13,060	23,691
Net interest income	95,558	89,982	78,870
(Reversal) Provision for credit losses	(1,700)	13,200	1,250
Net interest income after provision for credit losses	97,258	76,782	77,620
Noninterest income
Service charges	3,772	3,064	3,715
Net realized loss on securities transactions	0	0	(22)
Net realized gain on sale of loans	5,528	6,834	2,850
Merchant and debit card fees	6,717	5,515	4,264
Other income	8,559	7,624	6,155
Total noninterest income	24,576	23,037	16,962
Noninterest expense
Employee compensation and benefits	42,345	37,193	35,907
Occupancy expenses	10,944	10,220	9,834
Other expenses	19,989	19,109	16,784
Total noninterest expense	73,278	66,522	62,525
Income before income taxes	48,556	33,297	32,057
Income tax provision	8,750	5,895	5,778
Net earnings	$ 39,806	$ 27,402	$ 26,279
Basic earnings per share (in USD per share)	$ 3.30	$ 2.25	$ 2.05
Diluted earnings per share (in USD per share)	$ 3.26	$ 2.24	$ 2.05