Quarterly report pursuant to Section 13 or 15(d)

Customer Concentration (Details)

v3.8.0.1
Customer Concentration (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Customer A [Member] | Total Third-Party Revenues [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 17.00% 33.00%  
Customer A [Member] | Accounts Receivable from Third-Parties [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 13.00%   28.00%
Customer B [Member] | Total Third-Party Revenues [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 12.00% 13.00%  
Customer B [Member] | Accounts Receivable from Third-Parties [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 7.00%   16.00%
Customer C [Member] | Total Third-Party Revenues [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 24.00% 0.00%  
Customer C [Member] | Accounts Receivable from Third-Parties [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 18.00%   14.00%
Customer D [Member] | Total Third-Party Revenues [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage   0.00%  
Customer D [Member] | Accounts Receivable from Third-Parties [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 10.00%   0.00%
Customer E [Member] | Total Third-Party Revenues [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage   10.00%  
Customer E [Member] | Accounts Receivable from Third-Parties [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 21.00%   15.00%
Customer F [Member] | Total Third-Party Revenues [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage   0.00%  
Customer F [Member] | Accounts Receivable from Third-Parties [Member]      
Concentration Risk [Line Items]      
Concentration Risk, Percentage 11.00%   0.00%