Quarterly report pursuant to Section 13 or 15(d)

Stock Plans - Schedule of Restricted Stock Unit Activity (Detail)

v3.20.2
Stock Plans - Schedule of Restricted Stock Unit Activity (Detail) - Restricted Stock Units [Member]
9 Months Ended
Sep. 30, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares, Unvested, Beginning Balance | shares 142,145
Shares, Granted | shares 835,157
Shares, Forfeited | shares (5,500)
Shares, Vested | shares (116,295)
Shares, Unvested, Ending Balance | shares 855,507
Weighted Average Grant Date Fair Value, Unvested, Beginning Balance | $ / shares $ 6.71
Weighted Average Grant Date Fair Value, Granted | $ / shares 10.20
Weighted Average Grant Date Fair Value, Forfeited | $ / shares 8.81
Weighted Average Grant Date Fair Value, Vested | $ / shares 6.84
Weighted Average Grant Date Fair Value, Unvested, Ending Balance | $ / shares $ 10.09