Quarterly report pursuant to Section 13 or 15(d)

Credit Risk and Concentrations (Details Textual)

v3.8.0.1
Credit Risk and Concentrations (Details Textual)
$ in Millions
3 Months Ended
Mar. 31, 2018
Vendor
Mar. 31, 2017
USD ($)
Vendor
Accounts payable [Member]    
Credit Risk and Concentrations (Textual)    
Number of vendors | Vendor 2 1
Accounts payable [Member] | One vendors [Member]    
Credit Risk and Concentrations (Textual)    
Concentration risk, percentage 33.00% 38.00%
Purchases from vendors | $   $ 1.6
Accounts payable [Member] | Two vendors [Member]    
Credit Risk and Concentrations (Textual)    
Concentration risk, percentage 17.00%  
Accounts Receivable [Member] | Customer A [Member]    
Credit Risk and Concentrations (Textual)    
Concentration risk, percentage 14.00%  
Accounts Receivable [Member] | Customer B [Member]    
Credit Risk and Concentrations (Textual)    
Concentration risk, percentage 0.20%  
Accounts Receivable [Member] | Customer C [Member]    
Credit Risk and Concentrations (Textual)    
Concentration risk, percentage 3.00%  
Accounts Receivable [Member] | Customer D [Member]    
Credit Risk and Concentrations (Textual)    
Concentration risk, percentage   2.00%
Revenue [Member] | Customer A [Member]    
Credit Risk and Concentrations (Textual)    
Concentration risk, percentage 10.00% 10.00%