Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Sales, net	$ 14,730	$ 7,606	$ 43,463	$ 22,773
Expenses
Cost of products	10,099	4,120	29,412	13,217
Selling, general and administrative	3,549	3,186	10,110	8,407
Total expenses	13,648	7,306	39,522	21,624
Operating income	1,082	300	3,941	1,149
Other income (expense):
Interest income	2	1	4	1
Other income (expense)	0	(4)	7	37
Total other income (expense)	2	(3)	11	38
Income before income taxes	1,084	297	3,952	1,187
Income tax expense	(365)	(85)	(1,355)	(358)
Net income	$ 719	$ 212	$ 2,597	$ 829
Net earnings per share-basic:	$ 0.05	$ 0.02	$ 0.19	$ 0.06
Net earnings per share-diluted:	$ 0.05	$ 0.02	$ 0.19	$ 0.06
Weighted average shares outstanding-basic	13,741,170	13,718,396	13,735,361	13,699,355
Weighted average shares outstanding-diluted	13,836,303	13,794,276	13,825,255	13,857,746