CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue from product sales	$ 13,011	$ 5,998
Cost of sales for product sales	12,080	6,175
Operating income (loss)	931	(177)
Selling, general and administrative expenses	1,042	1,199
Loss before other income (expense)	(111)	(1,376)
Other income (expense)
Interest expense, including loan fee amortization	(183)	(59)
Gain (loss) on sale of assets	28	0
Other income (expense), net	2	11
Total other income (expense)	(153)	(48)
Loss before income taxes	(264)	(1,424)
Income tax provision	7	1
Net loss	$ (271)	$ (1,425)
Basic loss per share (in dollars per share)	$ (0.03)	$ (0.18)
Diluted loss per share (in dollars per share)	$ (0.03)	$ (0.18)
Weighted average shares outstanding:
Basic (in Shares)	8,075	8,019
Diluted (in Shares)	8,075	8,019