Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Sales, net	$ 9,057	$ 6,191	$ 16,882	$ 13,264
Expenses
Cost of products	5,180	3,474	9,857	7,312
Selling, general and administrative	2,839	2,339	5,385	5,075
Total expenses	8,019	5,813	15,242	12,387
Operating income	1,038	378	1,640	877
Other income (expense):
Net interest expense	0	0	0	0
Other income (expense)	(9)	31	(9)	11
Total other income (expense)	(9)	31	(9)	11
Income before income taxes	1,029	409	1,631	888
Income tax expense	(357)	(212)	(484)	(286)
Net income	$ 672	$ 197	$ 1,147	$ 602
Net earnings per share-basic:	$ 0.05	$ 0.01	$ 0.08	$ 0.04
Net earnings per share-diluted:	$ 0.05	$ 0.01	$ 0.08	$ 0.04
Weighted average shares outstanding-basic	13,645,025	13,564,119	13,634,182	13,554,852
Weighted average shares outstanding-diluted	13,731,422	13,653,703	13,721,754	13,579,970