Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Checkpoint's derivative Contingently Issuable Warrant liabilities (Detail)

v3.3.1.900
Fair Value Measurements - Checkpoint's derivative Contingently Issuable Warrant liabilities (Detail) - Warrant [Member] - Checkpoint [Member]
$ in Thousands
1 Months Ended
Oct. 30, 2015
USD ($)
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Fair value at the beginning of period: $ 0
Additions 175
Change in fair value 438
Issuance of Warrants (October 30, 2015) (613)
Fair value at end of period: $ 0