Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Statement [Abstract]
Sales, net	$ 27,576	$ 24,104	$ 25,954
Expenses
Cost of products	14,511	13,972	14,627
Selling, general and administrative	10,172	10,785	11,955
Total expenses	24,683	24,757	26,582
Operating income (loss)	2,893	(653)	(628)
Other (expense) income:
Interest expense	(4)	(107)	(30)
Interest income	1	1	1
Other (expense) income	(9)	(7)	4
Total other expense	(12)	(113)	(25)
Income (loss) before income taxes	2,881	(766)	(653)
Income tax (expense) benefit	(816)	273	(7)
Net income (loss)	$ 2,065	$ (493)	$ (660)
Net income (loss) per share-basic:	$ 0.15	$ (0.04)	$ (0.05)
Net income (loss) per share-diluted:	$ 0.15	$ (0.04)	$ (0.05)
Weighted average shares outstanding-basic	13,542	13,514	13,480
Weighted average shares outstanding-diluted	13,544	13,514	13,480