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Subsequent Events	9 Months Ended
Subsequent Events	Sep. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	14. Subsequent Events On November 7, 2017, the Company entered into a Third Amended and Restated Loan Agreement with Silicon Valley Bank (“Modification Agreement”), amending the terms of the Second Amended and Restated Loan and Security Agreement (Domestic) dated November 30, 2011 (as amended and as in effect immediately prior to the effectiveness of the Modification Agreement). The Modification Agreement provided for, among other terms and provisions, an adjustment in the maximum availability under the Company’s revolving line of credit from $10.0 million to $5.0 million with the pro-rata reduction in related loan costs, as well as a reduction in the interest rate floor from 7.0% to 5.75%. This change should have no impact on the Company’s typical borrowing capacity.