Consolidated Statements Of Shareholders' Equity And Comprehensive Income (Loss) (USD $) In Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2009	$ 5,986	$ 14,987	$ (2,005)	$ (214)	$ (1,265)	$ 17,489
Balance, shares at Dec. 31, 2009	5,986
Exercise of stock options	69	126				195
Exercise of stock options, shares	69					69
Shares issued under the Employee Stock Purchase Plan	15	50				65
Shares issued under the Employee Stock Purchase Plan, shares	15
Shares issued in lieu of cash for services	3	7				10
Shares issued in lieu of cash for services, shares	3
Stock option expense		474				474
Net income (loss)			361			361
Comprehensive income (loss)				(23)		(23)
Balance at Dec. 31, 2010	6,073	15,644	(1,644)	(237)	(1,265)	18,571
Balance, shares at Dec. 31, 2010	6,073
Exercise of stock options	69	91				160
Exercise of stock options, shares	69					69
Shares issued under the Employee Stock Purchase Plan	17	53				70
Shares issued under the Employee Stock Purchase Plan, shares	17
Shares issued in lieu of cash for services	3	6				9
Shares issued in lieu of cash for services, shares	3
Stock option expense		214				214
Retirement of Treasury Shares	(516)	(749)			1,265
Retirement of Treasury Shares, shares	(516)
Net income (loss)			(1,425)			(1,425)
Comprehensive income (loss)				(153)		(153)
Balance at Dec. 31, 2011	5,646	15,259	(3,069)	(390)		17,446
Balance, shares at Dec. 31, 2011	5,646
Exercise of stock options	20	30				50
Exercise of stock options, shares	20					20
Shares issued under the Employee Stock Purchase Plan	20	89				109
Shares issued under the Employee Stock Purchase Plan, shares	20
Shares issued in lieu of cash for services	1	5				6
Shares issued in lieu of cash for services, shares	1
Stock option expense		414				414
Net income (loss)			709			709
Comprehensive income (loss)				(12)		(12)
Balance at Dec. 31, 2012	$ 5,687	$ 15,797	$ (2,360)	$ (402)		$ 18,722
Balance, shares at Dec. 31, 2012	5,687