Quarterly report pursuant to Section 13 or 15(d)

Common Stock - Summary of Stock Options Activity (Detail)

v3.20.1
Common Stock - Summary of Stock Options Activity (Detail)
3 Months Ended
Mar. 31, 2020
$ / shares
shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Number of Optioned Common Shares, Beginning Balance | shares 1,010,583
Number of Optioned Common Shares, Granted | shares 1,497,600
Number of Optioned Common Shares, Forfeited | shares (18,757)
Number of Optioned Common Shares, Ending Balance | shares 2,489,426
Weighted Average Exercise Price, Beginning Balance | $ / shares $ 10.05
Weighted Average Exercise Price, Granted | $ / shares 0.56
Weighted Average Exercise Price, Forfeited | $ / shares 4.33
Weighted Average Exercise Price, Ending Balance | $ / shares $ 4.38