Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 10,837	$ 10,568	$ 10,414
Other comprehensive (loss) income
Unrealized (loss) gains arising during the period	(2,050)	1,094	1,803
Unrealized losses on held-to-maturity transfer	(1,976)
Reclassification of unrealized losses on held-to-maturity transfer	86	63	75
Income tax effect at 21%	829	(243)	(394)
Other comprehensive (loss) income	(3,111)	914	1,484
Total comprehensive income	$ 7,726	$ 11,482	$ 11,898