Debt - Schedule of Outstanding Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Long term debt	$ 19,314	$ 5,821
Capital Lease Obligations	107	0
Short-term portion	(19,314)	(5,821)
Total long-term debt, net	0	0
Line of Credit \| 2016 Credit and Security Agreement
Debt Instrument [Line Items]
Long term debt	10,015	3,603
Term Loan \| A&R Credit Agreement
Debt Instrument [Line Items]
Long term debt	8,500	3,676
Discount on Term Loan	(631)	(1,122)
Unamortized debt issuance costs related to Term Loan	(220)	(336)
Subordinated Debt \| Subordinated Promissory Note
Debt Instrument [Line Items]
Long term debt	$ 1,543	$ 0

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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