Quarterly report pursuant to Section 13 or 15(d)

Summary of Unvested Restricted Stock Units (Detail)

v3.7.0.1
Summary of Unvested Restricted Stock Units (Detail) - Restricted Stock Units (RSUs) - $ / shares
6 Months Ended
Feb. 06, 2017
Jun. 30, 2017
Shares    
Beginning Balance   418,511
Granted 80,000 1,880,176
Vested   (343,511)
Ending Balance   1,955,176
Weighted Average Grant Date Fair Value    
Beginning Balance   $ 1.23
Granted   1.41
Vested   1.32
Ending Balance   $ 1.38