Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Data Abstract
Total interest income	$ 28,833	$ 27,635	$ 28,142	$ 27,717	$ 25,847	$ 25,931	$ 25,529	$ 24,679	$ 112,327	$ 101,986	$ 91,766
Total interest expense	3,030	3,470	4,221	5,415	4,682	5,174	5,038	4,714	16,136	19,608	13,265
NET INTEREST INCOME	25,803	24,165	23,921	22,302	21,165	20,757	20,491	19,965	96,191	82,378	78,501
Provision for loan losses	3,000	2,600	2,400	1,100	600	550	750	550	9,100	2,450	3,000
Noninterest income	10,682	9,467	9,136	7,870	7,647	7,441	6,994	6,520	37,155	28,602	25,499
Merger related costs (income)	1,798	58	48	1,319	104	112	(19)	0
Noninterest expense	17,979	17,662	17,692	17,418	16,247	16,311	16,723	15,977
INCOME BEFORE INCOME TAXES	13,708	13,312	12,917	10,335	11,861	11,225	10,031	9,958	50,272	43,075	38,283
Income taxes	2,351	2,443	1,906	1,696	2,186	2,071	1,488	1,570	8,396	7,315	5,714
NET INCOME	$ 11,357	$ 10,869	$ 11,011	$ 8,639	$ 9,675	$ 9,154	$ 8,543	$ 8,388	$ 41,876	$ 35,760	$ 32,569
Diluted earnings per share	$ 0.40	$ 0.38	$ 0.39	$ 0.30	$ 0.35	$ 0.33	$ 0.31	$ 0.30	$ 1.47	$ 1.28	$ 1.16