Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Concentration of Credit Risk and Significant Customers (Details)

v3.7.0.1
Summary of Significant Accounting Policies - Concentration of Credit Risk and Significant Customers (Details) - Customer Concentration Risk
3 Months Ended 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Third-Party Customer | Sales Revenue, Net      
Concentration Risk [Line Items]      
Concentration risk, percentage   35.00%  
Related Party Customer | Trade Accounts Receivable      
Concentration Risk [Line Items]      
Concentration risk, percentage 57.00%   58.00%
One Related Party Customer | Trade Accounts Receivable      
Concentration Risk [Line Items]      
Concentration risk, percentage 52.00%   53.00%
One Related Party Customer | Sales Revenue, Net      
Concentration Risk [Line Items]      
Concentration risk, percentage 59.00% 7.00%  
Second Third-Party Customer | Sales Revenue, Net      
Concentration Risk [Line Items]      
Concentration risk, percentage   17.00%