Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues
Bitcoin mining	$ 388		$ 700
Cost of revenues
Bitcoin mining	188		389
Gross margin	200		311
Operating expenses:
General and administrative	4,172	3,769	7,007	4,423
Sales and marketing	65		183
Research and development	83		186
Impairment of goodwill		1,496		1,496
Impairment of intangible assets		673		673
Total operating expenses	4,320	5,938	7,376	6,592
Operating loss	(4,120)	(5,938)	(7,065)	(6,592)
Other non-operating (expense) / income
Interest and other income (expense) / income	(152)	11	(190)	36
Accretion of debt discount	(11)		(48)
Loss on sale of investments		(462)	(84)	(1,193)
Gain on sale of property and equipment	48		48
Impairment - equity method investment, related party			(2,500)
Impairment of long-term investments			(287)
Total other non-operating expenses	(115)	(451)	(3,061)	(1,157)
Net loss before non-controlling interest	(4,235)	(6,389)	(10,126)	(7,749)
Net loss attributable to non-controlling interest		296		319
Net loss attributable to Common stockholders	(4,235)	(6,093)	(10,126)	(7,430)
Other comprehensive loss
Realized loss on sale of investments		775	66	1,205
Unrealized holding gain		82		82
Comprehensive loss	$ (4,235)	$ (5,236)	$ (10,060)	$ (6,143)
Per-share data
Basic and diluted loss per share	$ (0.12)	$ (0.29)	$ (0.31)	$ (0.38)
Weighted average number of Common shares outstanding	34,476,701	21,228,156	32,173,684	19,578,022