SEGMENT INFORMATION (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of segments | segment	1
Revenue	$ 5,020	$ 10,053
Adjusted EBITDA	(18,635)	(26,624)
Depreciation and amortization	(982)	(2,089)
Impairments	(2,522)	(2,209)
Share-based compensation expense	(319)	(12,948)
Other income, net	(530)	(267)
Other loss	172	(886)
Operating loss	(22,754)	(44,500)
Other income (expense)
Interest expense	(1,876)	(3,237)
Other income, net	530	267
Change in fair value of warrant liability	1,268	27,879
Other gain (loss)	(172)	886
Total other income (expense), net	(250)	25,795
Loss from continuing operations before income taxes	(23,004)	(18,705)
Assets	14,827	93,808
Capital expenditures	8	308
Operating Segments | Technology & Data Intelligence
Segment Reporting Information [Line Items]
Revenue	3,595	8,030
Adjusted EBITDA	(6,821)	(11,061)
Other income (expense)
Capital expenditures	100	700
Corporate Entity and Other
Segment Reporting Information [Line Items]
Revenue	1,425	2,023
Adjusted EBITDA	(11,814)	(15,563)
Continuing Operations
Segment Reporting Information [Line Items]
Share-based compensation expense	(257)	(12,425)
Other income (expense)
Assets	14,827	20,719
Continuing Operations | Operating Segments | Technology & Data Intelligence
Other income (expense)
Assets	7,450	15,563
Continuing Operations | Corporate And Reconciling Items
Other income (expense)
Assets	$ 7,377	$ 5,156