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CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Cash Flows from operating activities:    
Net loss $ (117,302) $ (55,142)
Adjustments to reconcile net loss to net cash used in operating activities:    
Non-cash interest expense 854 806
Gain on extinguishment of debt 0 366
Non-cash lease expense 378 163
Loss on the disposal of property and equipment   22
Net amortization of premiums (accretion of discounts) on marketable securities (3,067) (232)
Unrealized foreign currency losses (gains) 3 (6)
Share-based compensation expense 9,646 5,324
Depreciation of property and equipment 509 323
Changes in operating assets and liabilities:    
Investment tax credit receivable (595) 2,011
Prepaid expenses and other assets 1,989 (7,566)
Accounts payable 4,942 474
Accrued expenses and other current liabilities 3,130 5,225
Lease liabilities 274 (49)
Net cash used in operating activities (99,239) (48,281)
Cash flows from investing activities    
Purchases of property and equipment (1,485) (925)
Purchases of marketable securities (160,843) (125,028)
Proceeds from maturities of marketable securities 137,190  
Net cash used in investing activities (25,138) (125,953)
Cash flows from financing activities    
Payment of Reverse Recapitalization and PIPE Financing costs   (613)
Proceeds from the February 2024 PIPE Financing   260,149
Payments of issuance costs associated with the 2024 PIPE Financing   (12,386)
Proceeds from exercise of common share warrants   5,983
Proceeds from exercise of stock options 2,223 113
Repayments of term loan principal (699) (9,445)
Proceeds from issuance of term loan   22,500
Payments of debt issuance costs associated with the term loan   (585)
Net cash provided by financing activities 1,524 265,716
Effect of exchange rate changes on cash 1 1
Net (decrease) increase in cash and cash equivalents (122,852) 91,483
Cash and cash equivalents at beginning of period 173,004 81,521
Cash and cash equivalents at end of period 50,152 173,004
Supplemental cash flow information:    
Cash paid for interest 2,289 1,925
Supplemental disclosure of non-cash investing and financing activities    
Reverse Recapitalization and PIPE financing transaction costs included within accrued expenses   3,831
Warrant value issued as part of Amended Term Loan   319
Right of use assets obtained in exchange for lease liabilities 6,352 $ 1,904
Property and equipment included in accrued expenses and accounts payable $ 332