Property and Equipment, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Less - accumulated depreciation	$ (1,384)	$ (1,014)
Property and equipment, net	359	544
Depreciation	287	459	$ 811
Software, office and computer equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	1,443	1,258
Furniture, fixtures and fittings
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 300	$ 300