Consolidated Statement of Shareholders' Equity (Unaudited) (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2013	$ 2,148	$ 13,747	$ 65,618	$ (3,412)	$ (2,476)	$ 75,625
Balance (in Shares) at Dec. 31, 2013	3,271,658
Net income			2,296			2,296
Other comprehensive income (loss), net of tax				1,766		1,766
Cash dividends declared			(918)			(918)
Stock issued for employee stock purchase plan	5	182				187
Stock issued for employee stock purchase plan (in Shares)	7,534
Stock issued for options exercised	3	22				25
Stock issued for options exercised (in Shares)	4,994
Tax benefit of stock options exercised		10				10
Stock-based compensation expense		19				19
Balance at Mar. 31, 2014	2,156	13,980	66,996	(1,646)	(2,476)	79,010
Balance (in Shares) at Mar. 31, 2014	3,284,186
Balance at Dec. 31, 2014	2,176	14,819	70,928	907	(2,476)	86,354
Balance (in Shares) at Dec. 31, 2014	3,316,658					3,316,658
Net income			2,136			2,136
Other comprehensive income (loss), net of tax				1,292		1,292
Cash dividends declared			(964)			(964)
Stock issued for employee stock purchase plan	5	215				220
Stock issued for employee stock purchase plan (in Shares)	7,944
Stock issued for options exercised	4	77				81
Stock issued for options exercised (in Shares)	7,027					(10,875)
Tax benefit of stock options exercised		19				19
Stock-based compensation expense		21				21
Balance at Mar. 31, 2015	$ 2,185	$ 15,151	$ 72,100	$ 2,199	$ (2,476)	$ 89,159
Balance (in Shares) at Mar. 31, 2015	3,331,629					3,331,629