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Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Summary of Shares Not Included in Computation of Diluted Net Loss Per Share (Details)

v3.23.1
Significant Accounting Policies - Summary of Shares Not Included in Computation of Diluted Net Loss Per Share (Details) - shares
 9 Months Ended 12 Months Ended
Jan. 31, 2023
Apr. 30, 2022
Options to purchase common shares Ìý Ìý
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Ìý Ìý
Antidilutive securities excluded from computation of earnings per share, amount 614,458 860,182
Restricted stock units Ìý Ìý
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Ìý Ìý
Antidilutive securities excluded from computation of earnings per share, amount 0 0
Warrants to purchase common shares Ìý Ìý
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Ìý Ìý
Antidilutive securities excluded from computation of earnings per share, amount 425,000 649,174
Unvested restricted stock Ìý Ìý
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Ìý Ìý
Antidilutive securities excluded from computation of earnings per share, amount 523,056 929,928
Convertible Notes Ìý Ìý
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Ìý Ìý
Antidilutive securities excluded from computation of earnings per share, amount 10,000,000 10,000,000