CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue	$ 1,913	$ 189	$ 4,497	$ 1,146
Cost of revenue and operating expenses
Cost of components and personnel	970	114	2,210	689
Inventory valuation adjustments	80	0	192	0
General and administrative expenses	2,260	1,924	6,671	5,591
Research and development expenses	1,424	995	4,627	3,655
Amortization and depreciation	1,254	958	4,118	2,876
Total cost of revenue and operating expenses	5,988	3,991	17,818	12,811
Loss from operations	(4,075)	(3,802)	(13,321)	(11,665)
Other income (expense)
Changes in fair value of derivative liabilities	2,566	1,103	1,305	1,567
Offering expenses (See Note 8)	(526)	0	(684)	0
Gain on bargain purchase	0	0	2,749	0
Other expense	(924)	0	(981)	0
Interest expense, net	(147)	(362)	(818)	(457)
Total other income (expense)	969	741	1,571	1,110
Net loss	(3,106)	(3,061)	(11,750)	(10,555)
Preferred stock dividends and deemed dividends	0	0	(1,808)	(3,079)
Net loss attributable to common shareholders	$ (3,106)	$ (3,061)	$ (13,558)	$ (13,634)
Basic and diluted net loss per share (in dollars per share)	$ (0.20)	$ (5.04)	$ (1.69)	$ (33.01)
Weighted average number of shares outstanding basic and diluted (in shares)	15,702	607	8,018	413