CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL	RETAINED EARNINGS	ACCUMULATED OTHER COMPREHENSIVE LOSS	TREASURY STOCK
Beginning Balance (in shares) at Dec. 31, 2014		5,002,649
Beginning Balance at Dec. 31, 2014	$ 135,967	$ 41,688	$ 49,896	$ 53,107	$ (1,667)	$ (7,057)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,355			3,355
Other comprehensive income	361				361
Dividends declared	(2,257)			(2,257)
Common shares issued for employee stock purchase plan (in shares)		520
Common shares issued for employee stock purchase plan	23	$ 5	18
Purchases of treasury stock	(445)					(445)
Ending Balance (in shares) at Mar. 31, 2015		5,003,169.000
Ending Balance at Mar. 31, 2015	137,004	$ 41,693	49,914	54,205	(1,306)	(7,502)
Beginning Balance (in shares) at Dec. 31, 2015		5,004,984
Beginning Balance at Dec. 31, 2015	136,279	$ 41,708	49,992	58,038	(3,799)	(9,660)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,078			3,078
Other comprehensive income	1,091				1,091
Dividends declared	(2,228)			(2,228)
Common shares issued for employee stock purchase plan (in shares)		550
Common shares issued for employee stock purchase plan	17	$ 5	12
Purchases of treasury stock	(574)					(574)
Ending Balance (in shares) at Mar. 31, 2016		5,005,534
Ending Balance at Mar. 31, 2016	$ 137,663	$ 41,713	$ 50,004	$ 58,888	$ (2,708)	$ (10,234)