Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Sales, net	$ 8,670	$ 7,600	$ 25,552	$ 20,864
Expenses
Cost of products	4,881	4,328	14,739	11,640
Selling, general and administrative	2,756	2,505	8,141	7,580
Total expenses	7,637	6,833	22,880	19,220
Operating income	1,033	767	2,672	1,644
Other income (expense):
Net interest income (expense)	0	0	1	0
Other income (expense)	3	0	(7)	11
Total other income (expense)	3	0	(6)	11
Income before income taxes	1,036	767	2,666	1,655
Income tax expense	(380)	(253)	(864)	(539)
Net income	$ 656	$ 514	$ 1,802	$ 1,116
Net earnings per share-basic:	$ 0.05	$ 0.04	$ 0.13	$ 0.08
Net earnings per share-diluted:	$ 0.05	$ 0.04	$ 0.13	$ 0.08
Weighted average shares outstanding-basic	13,655,988	13,580,471	13,641,520	13,563,486
Weighted average shares outstanding-diluted	13,781,534	13,648,570	13,741,750	13,619,676