Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Sales, net	$ 6,191	$ 9,327	$ 13,264	$ 13,696
Expenses
Cost of products	3,474	4,687	7,312	7,389
Selling, general and administrative	2,339	2,624	5,075	4,964
Total expenses	5,813	7,311	12,387	12,353
Operating income	378	2,016	877	1,343
Other income (expense):
Net interest expense	0	(3)	0	(3)
Other income (expense)	31	(2)	11	(7)
Total other income (expense)	31	(5)	11	(10)
Income before income taxes	409	2,011	888	1,333
Income tax expense	(212)	(765)	(286)	(488)
Net income	$ 197	$ 1,246	$ 602	$ 845
Net earnings per share-basic:	$ 0.01	$ 0.09	$ 0.04	$ 0.06
Net earnings per share-diluted:	$ 0.01	$ 0.09	$ 0.04	$ 0.06
Weighted average shares outstanding-basic	13,564,119	13,544,273	13,554,852	13,539,111
Weighted average shares outstanding-diluted	13,653,703	13,545,141	13,579,970	13,540,851