CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 20,347	$ 21,443	$ 21,289
Unrealized gains (losses) on securities:
Unrealized holdings gains (losses) arising during the period	21,344	15,455	(9,159)
Less: reclassification for net (gains) losses included in net income	(4,252)	(5,199)	(1,314)
Other comprehensive income (loss), before tax	17,092	10,256	(10,473)
Tax (expense) benefit related to items of other comprehensive income	(5,053)	(3,032)	3,096
Total other comprehensive income (loss)	12,039	7,224	(7,377)
Comprehensive income	$ 32,386	$ 28,667	$ 13,912