Quarterly report pursuant to Section 13 or 15(d)

Credit Risk and Concentrations (Details Textual)

v3.2.0.727
Credit Risk and Concentrations (Details Textual)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
Vendor
Jun. 30, 2014
USD ($)
Vendor
Concentration Risk [Line Items]        
Number of vendors     2 3
Vendor one [Member]        
Concentration Risk [Line Items]        
Concentration risk, percentage 63.00% 50.00% 63.00% 55.00%
Vendor two [Member]        
Concentration Risk [Line Items]        
Concentration risk, percentage 13.00% 15.00% 12.00% 15.00%
Vendor three [Member]        
Concentration Risk [Line Items]        
Concentration risk, percentage   14.00%   14.00%
Accounts payable [Member]        
Concentration Risk [Line Items]        
Number of vendors     2 2
Accounts payable [Member] | Vendor one [Member]        
Concentration Risk [Line Items]        
Concentration risk, percentage     63.00% 49.00%
Purchases from vendors | $ $ 7.9 $ 6.5 $ 12.7 $ 14.2
Accounts payable [Member] | Vendor two [Member]        
Concentration Risk [Line Items]        
Concentration risk, percentage     11.00% 14.00%
Purchases from vendors | $ $ 1.5 $ 1.9 $ 2.5 $ 3.7
Accounts Receivable [Member] | Customer C [Member]        
Concentration Risk [Line Items]        
Concentration risk, percentage       9.00%
Accounts Receivable [Member] | Customer B [Member]        
Concentration Risk [Line Items]        
Concentration risk, percentage     9.00%  
Accounts Receivable [Member] | Customer A [Member]        
Concentration Risk [Line Items]        
Concentration risk, percentage     38.00%  
Accounts Receivable [Member] | Customer E [Member]        
Concentration Risk [Line Items]        
Concentration risk, percentage       16.00%