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The Company and Basis of Presentation - Additional Information (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Mar. 22, 2017
USD ($)
Aug. 24, 2016
Mar. 29, 2017
USD ($)
Dec. 31, 2016
USD ($)
market
segment
Dec. 31, 2015
USD ($)
Company And Basis Of Presentation [Line Items]          
Number of product markets (more than 50) | market       50  
Number of reportable segments | segment       1  
Reverse stock split ratio   0.0833   0.0833  
Working capital       $ 32,700  
Cash       $ 19,593 $ 6,295
Subsequent Event          
Company And Basis Of Presentation [Line Items]          
Proceeds from private placement $ 18,900   $ 18,900