CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings Transition adjustment pursuant to adoption of ASC 2016-3	Retained Earnings	Accumulated Other Comprehensive (Loss) Gain	Transition adjustment pursuant to adoption of ASC 2016-3	Total
Balances at Dec. 31, 2019	$ 2,827	$ 10,525		$ 22,537	$ (209)		$ 35,680
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				268			268
Cash dividends, $0.40 per share				(283)			(283)
Dividends reinvested under dividend reinvestment plan	3	29					32
Other comprehensive income					160		160
Balances at Mar. 31, 2020	2,830	10,554		22,522	(49)		35,857
Balances at Dec. 31, 2020	2,842	10,640		23,071	540		37,093
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				594			594
Cash dividends, $0.40 per share				(284)			(284)
Dividends reinvested under dividend reinvestment plan	3	30					33
Other comprehensive income					(2,489)		(2,489)
Balances at Mar. 31, 2021	$ 2,845	$ 10,670	$ (1,472)	$ 21,909	$ (1,949)	$ (1,472)	$ 33,475