Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenue	$ 409	$ 388	$ 1,365	$ 700
Operating expenses
Cost of revenue	1,015	188	1,896	389
General and administrative	3,283	4,172	7,492	7,007
Restructuring charge	2,499		2,499
Sales and marketing		65	55	183
Research and development		83	47	186
Total operating expenses	6,797	4,508	11,989	7,765
Operating loss	(6,388)	(4,120)	(10,624)	(7,065)
Other non-operating expenses
Interest expense	(117)	(163)	(117)	(238)
Warrant modification expense			(139)
Loss on sale of cybersecurity assets			(127)
Gain (loss) on sale of property and equipment		48	(47)	48
Impairment/loss on sale of investments				(2,871)
Total other non-operating expenses	(117)	(115)	(430)	(3,061)
Net loss	(6,505)	(4,235)	(11,054)	(10,126)
Deemed dividend			(2,514)
Net loss attributable to common stockholders	(6,505)	(4,235)	(13,568)	(10,126)
Other comprehensive loss
Realized loss on sale of investments				66
Comprehensive loss	$ (6,505)	$ (4,235)	$ (13,568)	$ (10,060)
Per-share data
Basic and diluted loss per share	$ (0.10)	$ (0.12)	$ (0.22)	$ (0.31)
Weighted average number of common shares outstanding	65,781,192	34,476,701	62,649,062	32,173,684