Quarterly report pursuant to Section 13 or 15(d)

Summary of Nonvested Restricted Stock Units (Detail)

v3.5.0.2
Summary of Nonvested Restricted Stock Units (Detail) - Restricted Stock Units (RSUs)
6 Months Ended
Jun. 30, 2016
$ / shares
shares
Shares  
Granted | shares 906,773
Vested | shares (29,762)
Ending Balance | shares 877,011
Weighted Average Grant Date Fair Value  
Granted | $ / shares $ 1.04
Vested | $ / shares 0.86
Ending Balance | $ / shares $ 1.05