Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 59	$ 62
Minimum | Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Maximum | Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years