Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating costs and expenses
Amortization of patent portfolio		$ 338
Compensation and related expenses (including stock-based compensation)	181	355
Professional fees	399	597
Acquisition costs	11	145
Other selling, general and administrative	122	142
Total operating expenses	713	1,577
Loss from operations	(713)	(1,577)
Other (expenses) income
Other income (expenses) , net	92	(97)
Change in fair value of investment	(475)
Change in fair value of warrant liabilities	(53)	188
Total other (expenses) income	(436)	91
Net loss	$ (1,149)	$ (1,486)
Net loss per share, basic and diluted
Basic and Diluted (in dollars per share)	$ (0.57)	$ (0.96)
Weighted average number of shares outstanding, basic and diluted
Basic and Diluted (in shares)	2,010,025	1,549,481