Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 1,396	$ 1,632
Other comprehensive income, net of tax:
Change in fair value of securities available for sale, net of tax, $(392) and $(262), respectively	1,473	984
Reclassification adjustment for gains on securities available for sale, net of tax, $0 and $17, respectively		(62)
Change in fair value of interest rate swap, net of tax, $105 and $24, respectively	(399)	(92)
Total other comprehensive income, net of tax, $(287) and $(221), respectively	1,074	830
Total comprehensive income	$ 2,470	$ 2,462