Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Revenue	$ 450	$ 2,030
Operating expenses
Cost of revenue	510	4,191
General and administrative	7,377	12,816
Restructuring charge		2,499
Impairment of property and equipment	64	6,345
Sales and marketing		55
Research and development		47
Total operating expenses	7,951	25,953
Operating loss	(7,501)	(23,923)
Other non-operating income (expense)
Interest income (expense)	10	(3)
Change in fair value of liability	176
Accretion of debt discount	(5,605)	(919)
Warrant modification expense		(139)
Loss on sale of cybersecurity assets		(127)
Gain (loss) on sale of property and equipment	599	(47)
Gain on extinguishment of debt	3,540	1,875
Total other non-operating expense	(1,280)	640
Net loss	(8,781)	(23,283)
Deemed dividend	(1,005)	(2,514)
Net loss attributable to common stockholders	$ (9,786)	$ (25,797)
Per-share data
Basic and diluted loss per share	$ (0.04)	$ (0.35)
Weighted average number of common shares outstanding	257,122,569	73,056,223