CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest income
Loans, including fees	$ 93,335	$ 90,980	$ 77,170
Securities
Taxable	4,565	5,916	6,317
Nontaxable	4,189	3,830	3,770
Federal funds sold and interest-bearing deposits	953	1,835	1,201
Total interest income	103,042	102,561	88,458
Interest expense
Deposits	11,624	21,611	16,941
FHLB advances and federal funds purchased	470	1,389	1,865
Subordinated debentures	702	648	687
Other borrowed money	264	43	49
Total interest expense	13,060	23,691	19,542
Net interest income	89,982	78,870	68,916
Provision for credit losses	13,200	1,250	2,250
Net interest income after provision for credit losses	76,782	77,620	66,666
Noninterest income
Service charges	3,064	3,715	3,600
Net realized loss on securities transactions	0	(22)	(50)
Net realized gain on sale of loans	6,834	2,850	2,308
Other income	13,139	10,419	9,445
Total noninterest income	23,037	16,962	15,303
Noninterest expense
Employee compensation and benefits	37,193	35,907	32,122
Occupancy expenses	10,220	9,834	8,398
Other expenses	19,109	16,784	16,254
Total noninterest expense	66,522	62,525	56,774
Income before income taxes	33,297	32,057	25,195
Income tax provision	5,895	5,778	4,599
Net earnings	$ 27,402	$ 26,279	$ 20,596
Basic earnings per share (in USD per share)	$ 2.47	$ 2.26	$ 1.78
Diluted earnings per share (in USD per share)	$ 2.46	$ 2.25	$ 1.77