Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Revenue	$ 28	$ 956
Operating expenses
Cost of revenue	86	881
General and administrative	1,914	4,209
Sales and marketing		55
Research and development		47
Total operating expenses	2,000	5,192
Operating loss	(1,972)	(4,236)
Other non-operating income (expense)
Interest expense	(3)
Accretion of debt discount	(1,091)
Warrant modification expense		(139)
Loss on sale of business unit		(127)
Gain (loss) on sale of property and equipment	82	(47)
Gain on extinguishment of debt	1,275
Total other non-operating income (expense)	263	(313)
Net loss	(1,709)	(4,549)
Deemed dividend		(2,514)
Net loss attributable to common stockholders	$ (1,709)	$ (7,063)
Per-share data
Basic and diluted loss per share	$ (0.01)	$ (0.12)
Weighted average number of common shares outstanding	122,404,668	59,482,132