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Financing Transactions (Loan Agreement with GE Capital) (Details) - USD ($)
$ / shares in Units, $ in Millions
6 Months Ended
Jun. 30, 2015
Mar. 30, 2012
Loans Payable [Member]    
Debt Instrument [Line Items]    
Debt instrument, carrying amount   $ 2.5
Fixed interest rate 10.14%  
Prepayment premium, if we prepay the term loan and terminate the revolving line of credit prior to the scheduled maturity date, percent 2.00%  
Final payment fee payable on term loan balance, percent 3.00%  
Warrants issued to purchase common stock, in connection with loan agreement 46,584  
Warrant exercise price $ 1.61  
Debt $ 0.3  
Line of Credit [Member]    
Debt Instrument [Line Items]    
Line of credit facility, maximum borrowing capacity   $ 5.0
Line of credit facility borrowing capacity, qualified billed accounts receivable, percent 85.00%  
Line of credit facility borrowing capacity, qualified unbilled accounts receivable, percent 80.00%  
Current borrowing capacity $ 0.5  
Adjustable interest rate, reference rate, floor percentage 1.5% 1.50%  
Loan payable, interest rate spread 5.00%  
Incremental borrowing rate used to calculate discount 6.50%