Quarterly report pursuant to Section 13 or 15(d)

Stock Option and Incentive Plans - Summary of Stock Option Activity (Detail)

v3.22.1
Stock Option and Incentive Plans - Summary of Stock Option Activity (Detail)
3 Months Ended
Mar. 31, 2022
USD ($)
$ / shares
shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Number of Options, Options outstanding, Beginning balance | shares 2,899,694
Number of Options, Granted | shares 1,320,000
Number of Options, Exercised | shares 0
Number of Options, Expired | shares (9,525)
Number of Options, Forfeited | shares (38,250)
Number of Options, Options outstanding, Ending balance | shares 4,171,919
Number of Options, Vested and exercisable, Ending Balance | shares 1,735,474
Weighted Average Exercise Price, Options outstanding, Beginning balance | $ / shares $ 9.12
Weighted Average Exercise Price, Granted | $ / shares 3.33
Weighted Average Exercise Price, Exercised | $ / shares 0
Weighted Average Exercise Price, Expired | $ / shares 12.38
Weighted Average Exercise Price, Forfeited | $ / shares 5.02
Weighted Average Exercise Price, Options outstanding, Ending balance | $ / shares 7.32
Weighted Average Exercise Price, Vested and exercisable, Ending balance | $ / shares $ 11.44
Weighted Average Remaining Contractual Life (in years), Options outstanding 8 years 6 months 25 days
Weighted Average Remaining Contractual Life (in years), Vested and exercisable 6 years 10 months 24 days
Aggregate Intrinsic value, Options outstanding | $ $ 461,675
Aggregate Intrinsic value, Vested and exercisable | $ $ 28,209