Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Sales, net	$ 6,589	$ 9,057	$ 15,166	$ 16,882
Expenses
Cost of products	4,204	5,180	9,097	9,857
Selling, general and administrative	2,278	2,839	5,221	5,385
Total expenses	6,482	8,019	14,318	15,242
Operating income	107	1,038	848	1,640
Other income (expense)
Other income (expense)	39	(9)	41	(9)
Total other income (expense)	39	(9)	41	(9)
Income before income taxes	146	1,029	889	1,631
Income tax expense	(68)	(357)	(272)	(484)
Net income	$ 78	$ 672	$ 617	$ 1,147
Net earnings per share-basic:	$ 0.01	$ 0.05	$ 0.05	$ 0.08
Net earnings per share-diluted:	$ 0.01	$ 0.05	$ 0.04	$ 0.08
Weighted average shares outstanding-basic	13,707,716	13,645,025	13,689,676	13,634,182
Weighted average shares outstanding-diluted	13,921,241	13,731,422	13,889,324	13,721,754