Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Financial Statements Detail - Reconciliation of the Numerator (Net Loss) and the Denominator (Number of Shares) Used in the Calculation of Basic and Diluted Net Loss Per Share Available to Common Stockholders (Details)

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Condensed Consolidated Financial Statements Detail - Reconciliation of the Numerator (Net Loss) and the Denominator (Number of Shares) Used in the Calculation of Basic and Diluted Net Loss Per Share Available to Common Stockholders (Details) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Numerator    
Net loss $ (10,715) $ (8,365)
Deemed dividend on convertible preferred stock (5,603)  
Net loss available to common stockholders, basic and diluted $ (16,318) $ (8,365)
Denominator    
Weighted average shares outstanding used for basic and diluted net loss per share available to common stockholders 6,887 5,978