Quarterly report pursuant to Section 13 or 15(d)

Credit Risk and Concentrations (Details Textual)

v3.10.0.1
Credit Risk and Concentrations (Details Textual)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
USD ($)
Jun. 30, 2018
Vendor
Jun. 30, 2017
USD ($)
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     36.00% 40.00%
Purchases from vendors | $   $ 4.1   $ 5.8
Accounts payable [Member] | Two vendors [Member]        
Credit Risk and Concentrations (Textual)        
Concentration risk, percentage     20.00%  
Accounts Receivable [Member]        
Credit Risk and Concentrations (Textual)        
Concentration risk, percentage       10.00%
Accounts Receivable [Member] | Customer A [Member]        
Credit Risk and Concentrations (Textual)        
Concentration risk, percentage     22.00%  
Accounts Receivable [Member] | Customer B [Member]        
Credit Risk and Concentrations (Textual)        
Concentration risk, percentage     17.00%  
Accounts Receivable [Member] | Customer C [Member]        
Credit Risk and Concentrations (Textual)        
Concentration risk, percentage     15.00%  
Revenue [Member] | Customers [Member]        
Credit Risk and Concentrations (Textual)        
Concentration risk, percentage 10.00% 10.00% 10.00% 10.00%