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Debt - Summary of Outstanding Borrowings (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Total debt $ 6,686 $ 5,821
Short-term portion (6,686) (5,821)
Total long-term debt, net 0 0
Line of credit | 2016 Credit and Security Agreement    
Debt Instrument [Line Items]    
Total debt 3,991 3,603
Loans payable | Credit agreement    
Debt Instrument [Line Items]    
Total debt 3,676 3,676
Discount on Term Loan (755) (1,122)
Unamortized debt issuance costs related to Term Loan $ (226) $ (336)