Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue	$ 1,269	$ 4,287
Cost of goods sold	2,850	9,706
Gross loss	(1,581)	(5,419)
Operating expenses:
General and administrative	1,811	1,767
Sales and marketing	244	391
Research and development	641	579
Loss on disposal of assets	749
Loss from operations	(5,026)	(8,156)
Other income (expense):
Interest income	6	24
Interest expense		(35)
Realized gain on foreign currency translation	6	683
Total other income	12	672
Loss before income taxes	(5,014)	(7,484)
Income (expense) tax benefit	(60)	151
Net loss	$ (5,074)	$ (7,333)
Net loss per common share
Basic	$ (1.90)	$ (2.80)
Diluted	$ (1.90)	$ (2.80)
Weighted average common shares outstanding used in computing net loss per common share basic and diluted	2,673,474	2,622,661