Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Stock Options, Stock Purchase Plan and Warrants - Roll Forward of Non-Vested Stock Warrants Activity (Detail)

v3.6.0.2
Stock Options, Stock Purchase Plan and Warrants - Roll Forward of Non-Vested Stock Warrants Activity (Detail) - Warrant [Member]
12 Months Ended
Dec. 31, 2016
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Number of Warrants or restricted shares, Nonvested, Beginning balance | shares 120,000
Number of Warrants, Granted | shares 0
Number of Warrants, Vested | shares (120,000)
Number of Warrants, Forfeited | shares 0
Number of Warrants or restricted shares, Nonvested, Ending balance | shares 0
Weighted average grant date fair value, Nonvested, Beginning balance | $ / shares $ 1.43
Weighted average grant date fair value, Granted | $ / shares 0
Weighted average grant date fair value, Vested | $ / shares 1.43
Weighted average grant date fair value, Forfeited | $ / shares 0
Weighted average grant date fair value, Nonvested, Ending balance | $ / shares $ 0