Consolidated Statement of Shareholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2013	18,878,109
Balance at Dec. 31, 2013	$ 189,000	$ 18,994,000	$ 625,000	$ 15,773,000	$ 35,581,000
Options exercised (in shares)	490,000				490,000
Options exercised	$ 5,000	770,000			$ 775,000
Common stock repurchased and retired (in shares)	(1,019,553)				(1,019,553)
Common stock repurchased and retired	$ (11,000)	(2,195,000)			$ (2,206,000)
Excess tax benefit from stock options exercised		231,000			231,000
Share-based compensation expense		33,000			33,000
Net income					2,742,000
Other comprehensive income					$ 750,000
Balance (in shares) at Dec. 31, 2014	18,348,556				18,348,556
Balance at Dec. 31, 2014	$ 183,000	17,833,000	1,375,000	18,515,000	$ 37,906,000
Options exercised (in shares)	475,000				475,000
Options exercised	$ 5,000	760,000			$ 765,000
Common stock repurchased and retired (in shares)	(973,100)				(973,100)
Common stock repurchased and retired	$ (10,000)	(2,100,000)			$ (2,110,000)
Excess tax benefit from stock options exercised		9,000			9,000
Share-based compensation expense		24,000			24,000
Net income					1,041,000
Other comprehensive income			(1,523,000)		$ (1,523,000)
Balance (in shares) at Dec. 31, 2015	17,850,456				17,850,456
Balance at Dec. 31, 2015	$ 178,000	$ 16,526,000	$ (148,000)	$ 19,556,000	$ 36,112,000