Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Sales, net	$ 50,689	$ 29,722
Expenses
Cost of products	33,612	17,440
Selling, general and administrative	12,792	10,852
Total expenses	46,404	28,292
Operating income	4,285	1,430
Other (expense) income:
Interest income	9	1
Other expense	(22)	(45)
Total other expense	(13)	(44)
Income before income taxes	4,272	1,386
Income tax expense	(1,583)	(345)
Net income	$ 2,689	$ 1,041
Net income per share-basic:	$ 0.20	$ 0.08
Net income per share-diluted:	$ 0.19	$ 0.08
Weighted average shares outstanding-basic	13,735	13,706
Weighted average shares outstanding-diluted	13,823	13,848