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, 2016	$ 57,670	$ 23,641	$ 20,878	$ 21,485	$ (2,961)	$ (5,373)
Net income	1,000			1,000
Other comprehensive loss	(1)				(1)
Cash dividend declared	(663)			(663)
Equity compensation	48		21			27
Ending balance at Mar. 31, 2017	58,054	23,641	20,899	21,822	(2,962)	(5,346)
Beginning balance at Dec. 31, 2017	61,630	23,641	20,928	24,403	(1,825)	(5,517)
Net income	1,537			1,537
Other comprehensive loss	(2,365)				(2,365)
Cash dividend declared	(486)			(486)
Treasury shares purchased (10,488 shares)	(223)					(223)
Equity compensation	34		(35)			69
Ending balance at Mar. 31, 2018	$ 60,127	$ 23,641	$ 20,893	$ 25,454	$ (4,190)	$ (5,671)