Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Revenue	$ 1,345	$ 7,086	$ 3,667	$ 14,908
Cost of goods sold	1,537	18,732	8,276	36,024
Gross loss	(192)	(11,646)	(4,609)	(21,116)
Operating expenses:
General and administrative	812	1,709	3,921	6,171
Sales and marketing	141	395	579	1,147
Research and development	50	803	887	2,034
Loss (gain) on disposal of assets	(46)		1,135	126
Long-lived asset impairment charges		10,216	675	10,481
Loss from operations	(1,149)	(24,769)	(11,806)	(41,075)
Other income (expense):
Interest income	39	9	73	52
Interest expense		(28)		(98)
Realized (loss) gain on foreign currency translation	8	(229)	27	237
Total other income (expense)	47	(248)	100	191
Loss before income taxes	(1,102)	(25,017)	(11,706)	(40,884)
Income tax (expense) benefit	(7)	216	(85)	541
Net loss	$ (1,109)	$ (24,801)	$ (11,791)	$ (40,343)
Net loss per common share
Basic	$ (0.41)	$ (9.40)	$ (4.37)	$ (15.30)
Diluted	$ (0.41)	$ (9.40)	$ (4.37)	$ (15.30)
Weighted average common shares outstanding used in computing net loss per common share	2,716,994	2,637,452	2,696,008	2,637,452