CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Revenue from product sales	$ 10,121	$ 13,769	$ 16,119	$ 30,038
Total revenue	10,121	13,769	16,119	30,038
Cost of sales for product sales	9,406	13,999	15,581	31,572
Inventory adjustment for lower of cost or market	0	0	0	791
Impairment loss, property and equipment	0	0	0	637
Total cost of sales	9,406	13,999	15,581	33,000
Selling, general and administrative expenses	1,191	1,069	2,390	2,015
Loss before other income (expense)	(476)	(1,299)	(1,852)	(4,977)
Other income (expense)
Interest expense, including loan fee amortization	(114)	(147)	(173)	(309)
Gain (loss) on sale of assets	0	(103)	0	322
Other income (expense), net	2	15	13	27
Total other income (expense)	(112)	(235)	(160)	40
Loss before income taxes	(588)	(1,534)	(2,012)	(4,937)
Income tax provision	39	0	40	8
Net loss from continuing operations	(627)	(1,534)	(2,052)	(4,945)
Income from discontinued operations, net of tax	0	334	0	644
Net loss	$ (627)	$ (1,200)	$ (2,052)	$ (4,301)
Net income (loss) per share of common stock:
Continuing operations, Basic (in dollars per share)	$ (0.08)	$ (0.19)	$ (0.26)	$ (0.62)
Discontinued operations, Basic (in dollars per share)	0.00	0.04	0.00	0.08
Continuing operations, Diluted (in dollars per share)	(0.08)	(0.19)	(0.26)	(0.62)
Discontinued operations, Diluted (in dollars per share)	$ 0.00	$ 0.04	$ 0.00	$ 0.08
Weighted average shares outstanding:
Basic (in Shares)	8,038	7,968	8,029	7,968
Diluted (in Shares)	8,038	7,968	8,029	7,968