Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Total
Balance at Dec. 31, 2018	$ 6,279	$ 50,173	$ 54,105	$ (6,099)	$ (5,044)	$ 99,414
Increase (Decrease) in Stockholders' Equity
Net income	0	0	4,666	0	0	4,666
Other comprehensive income	0	0	0	1,393	0	1,393
Cash dividends declared, common stock	0	0	(603)	0	0	(603)
Balance at Mar. 31, 2019	6,279	50,173	58,168	(4,706)	(5,044)	104,870
Balance at Dec. 31, 2019	6,520	55,727	61,590	(3,755)	(5,044)	115,038
Increase (Decrease) in Stockholders' Equity
Net income	0	0	868	0	0	868
Other comprehensive income	0	0	0	2,233	0	2,233
Purchase of treasury stock	0	0	0	0	(719)	(719)
Cash dividends declared, common stock	0	0	(750)	0	0	(750)
Balance at Mar. 31, 2020	$ 6,520	$ 55,727	$ 61,708	$ (1,522)	$ (5,763)	$ 116,670