Consolidated Statement of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 1,383	$ 1,289
Other comprehensive income (loss), net of tax:
Net unrealized holding gain (loss) on securities available-for-sale	15	(10)
Other comprehensive income (loss), net of tax	15	(10)
Comprehensive income	$ 1,398	$ 1,279