Credit Risk and Concentrations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Concentration Risk [Line Items]
Net revenues	$ 266	$ 1,246
Concentration risk, percentage	10.00%	10.00%
Customer Concentration Risk [Member] | Customer A [Member]
Concentration Risk [Line Items]
Net revenues	$ 322
Concentration risk, percentage	90.00%
Customer Concentration Risk [Member] | Customer B [Member]
Concentration Risk [Line Items]
Net revenues		$ 512
Concentration risk, percentage		41.00%
Customer Concentration Risk [Member] | Customer C [Member]
Concentration Risk [Line Items]
Net revenues		$ 211
Concentration risk, percentage		17.00%
Customer Concentration Risk [Member] | Customer D [Member]
Concentration Risk [Line Items]
Net revenues		$ 200
Concentration risk, percentage		16.00%