Income Taxes (Details 2) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Net-operating loss carryforward	$ 15,443	$ 12,163
Stock based compensation	8,104	5,444
Patent portfolio and other	15,004	11,201
Total Deferred Tax assets	38,551	28,808
Valuation allowance	(35,084)	(26,831)
Deferred Tax Asset, Net of Allowance	3,467	1,977
Deferred tax liability:
Fair value adjustment of investment	(3,467)	(1,977)
Total