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Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 1,805	$ 1,870	$ 6,255	$ 1,650
Other comprehensive (loss) income:
Net unrealized (loss) gain on available-for-sale securities, net of taxes of $29, $(11), $(96) and $52	82	(32)	(273)	150
Reclassification adjustment for gain included in net income, net of taxes of ($5)				(15)
Total other comprehensive (loss) income	82	(32)	(273)	135
Total comprehensive income	$ 1,887	$ 1,838	$ 5,982	$ 1,785

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