Concentrations - Significant Customers with Individual Percentage of Total Revenues Equaling 10% or Greater (Details) - Customer Concentration Risk [Member] - Revenues [Member]	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Concentration Risk [Line Items]
Concentration risk, percentage	99.00%	0.00%	95.40%	0.00%
Customer 1 [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	45.80%	0.00%	38.20%	0.00%
Customer 2 [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	22.20%	0.00%	23.50%	0.00%
Customer 3 [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	17.90%	0.00%	24.60%	0.00%
Customer 4 [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	13.10%	0.00%	9.10%	0.00%