v3.26.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Reconciliation of net loss to net cash used in operating activities:    
Net loss $ (7,746) $ (8,306)
Stock option compensation to employees and directors 2,042 2,822
Stock options issued to consultants 85 77
Amortization of operating lease right-of-use asset 30 27
Change in amortization of discount on held-to-maturity securities 59 (93)
Change in operating assets and liabilities:    
Receivables 173
Prepaid expenses and other current assets (334) (155)
Accounts payable 117 (249)
Accrued expenses (344) (195)
Operating lease liability (30) (19)
Net cash used in operating activities (6,121) (5,918)
Cash flows from investing activities:    
Disbursements to acquire short-term investments (34,418) (36,700)
Proceeds from maturities of short-term investments 35,823 40,912
Net cash provided by investing activities 1,405 4,212
Cash flows from financing activities:    
Proceeds from sale of common stock in an at-the-market offering, net of offering expenses of $207 and $123, respectively 4,806 1,924
Proceeds from sale of common stock pursuant to an employee stock purchase plan 4 4
Proceeds from exercise of stock options 60 2
Net cash provided by financing activities 4,870 1,930
Net increase in cash and cash equivalents 154 224
Cash and cash equivalents at beginning of period 1,244 1,271
Cash and cash equivalents at end of period $ 1,398 $ 1,495