Net Loss Per Share - Summary of Diluted Net Loss Per Share Attributable To Common Shareholders (Details) - shares	3 Months Ended		6 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of diluted net loss per share	12,493,401	10,798,694	12,493,401	10,798,694
Redeemable convertible preferred shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of diluted net loss per share	0	5,983,339	0	5,983,339
Warrants to purchase redeemable convertible preferred shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of diluted net loss per share	0	3,194,756	0	3,194,756
Warrants to purchase common shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of diluted net loss per share	8,511,968	0	8,511,968	0
Options to purchase common shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of diluted net loss per share	3,981,433	1,620,599	3,981,433	1,620,599