Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance at Dec. 31, 2017		$ 23,641	$ 20,928	$ 24,403	$ (1,825)	$ (5,517)
Net income	$ 6,811			6,811
Cash dividend declared				(1,670)
Other comprehensive income (loss)	(3,399)				(3,399)
Treasury shares purchased (5,352 shares in 2019 and 70,181 in 2018)						(1,493)
Equity compensation			8			158
Ending balance at Sep. 30, 2018	62,045		20,936	29,544	(5,224)	(6,852)
Beginning balance at Jun. 30, 2018		23,641	20,878	28,270	(4,113)	(6,852)
Net income	1,972			1,972
Cash dividend declared				(698)
Other comprehensive income (loss)	(1,111)				(1,111)
Equity compensation			58
Ending balance at Sep. 30, 2018	62,045		20,936	29,544	(5,224)	(6,852)
Beginning balance at Dec. 31, 2018	64,918	23,641	20,984	31,089	(3,656)	(7,140)
Net income	5,378			5,378
Cash dividend declared				(1,659)
Other comprehensive income (loss)	4,917				4,917
Treasury shares reissued (2,770 shares)			11			49
Treasury shares purchased (5,352 shares in 2019 and 70,181 in 2018)						(122)
Equity compensation			158			503
Ending balance at Sep. 30, 2019	74,153		21,153	34,808	1,261	(6,710)
Beginning balance at Jun. 30, 2019		$ 23,641	21,027	33,345	(139)	(6,710)
Net income	1,945			1,945
Cash dividend declared				(482)
Other comprehensive income (loss)	1,400				1,400
Equity compensation			126
Ending balance at Sep. 30, 2019	$ 74,153		$ 21,153	$ 34,808	$ 1,261	$ (6,710)