Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Changes in Fair Value of Level 3 Financial Liabilities (Detail)

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Fair Value Measurements - Summary of Changes in Fair Value of Level 3 Financial Liabilities (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2016
USD ($)
Fair Value Disclosures [Abstract]  
Warrant liability, Beginning Balance $ 1,105
Unrealized Gain on warrants (134)
Warrant liability, Ending Balance $ 971