Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance (in shares) at Dec. 31, 2019		9,499
Beginning Balance at Dec. 31, 2019	$ 130,506	$ 9,499	$ 43,667	$ 76,978	$ 362
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in net unrealized (losses) gains on securities available for sale, net of reclassification adjustment and tax effects	4,905				4,905
Dividends on common shares	(950)			(950)
Stock-based compensation expense	8		8
Net income	1,603			1,603
Ending Balance (in shares) at Mar. 31, 2020		9,499
Ending Balance at Mar. 31, 2020	136,072	$ 9,499	43,675	77,631	5,267
Beginning Balance (in shares) at Dec. 31, 2020		9,499
Beginning Balance at Dec. 31, 2020	144,488	$ 9,499	43,215	84,993	6,781
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in net unrealized (losses) gains on securities available for sale, net of reclassification adjustment and tax effects	(4,956)				(4,956)
Dividends on common shares	(973)			(973)
Stock-based compensation expense	9		9
Net income	4,919			4,919
Ending Balance (in shares) at Mar. 31, 2021		9,499
Ending Balance at Mar. 31, 2021	$ 143,487	$ 9,499	$ 43,224	$ 88,939	$ 1,825