v3.25.4
Consolidated Balance Sheets - USD ($)
Oct. 31, 2025
Oct. 31, 2024
Current assets:    
Cash and cash equivalents $ 1,244,000 $ 1,271,000
Short–term investments 13,930,000 18,653,000
Receivables 173,000
Prepaid expenses and other current assets 713,000 1,265,000
Total current assets 15,887,000 21,362,000
Operating lease right-of-use asset 193,000 229,000
Total assets 16,080,000 21,591,000
Current liabilities:    
Accounts payable 165,000 525,000
Accrued expenses 1,761,000 1,946,000
Operating lease liability 41,000 29,000
Total current liabilities 1,967,000 2,500,000
Operating lease liability, non-current 163,000 203,000
Total liabilities 2,130,000 2,703,000
Commitments and contingencies (Note 6)
Equity:    
Preferred stock, value
Common stock, par value $.01 per share; 100,000,000 shares authorized; 33,013,829 and 32,196,862 shares issued and outstanding as of October 31, 2025 and 2024, respectively 330,000 322,000
Additional paid-in capital 266,508,000 260,432,000
Accumulated deficit (251,677,000) (240,750,000)
Treasury stock, 2,000 shares at cost as of October 31, 2024 (6,000)
Total shareholders’ equity 15,161,000 19,998,000
Noncontrolling interest (Note 2) (1,211,000) (1,110,000)
Total equity 13,950,000 18,888,000
Total liabilities and equity 16,080,000 21,591,000
Series A Convertible Preferred Stock [Member]    
Equity:    
Preferred stock, value

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v3.25.4
Consolidated Statements of Operations - USD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Income Statement [Abstract]    
Revenue
Operating costs and expenses:    
Research and development expenses (including non-cash stock-based compensation expenses of $1,560 and $1,859, respectively) 5,071 6,396
General and administrative expenses (including non-cash stock-based compensation expenses of $2,250 and $2,923, respectively) 6,630 7,435
Total operating costs and expenses 11,701 13,831
Loss from operations (11,701) (13,831)
Interest income 673 1,133
Net loss (11,028) (12,698)
Less: Net loss attributable to noncontrolling interest (101) (144)
Net loss attributable to common shareholders $ (10,927) $ (12,554)
Net loss per share:    
Basic $ (0.34) $ (0.39)
Diluted $ (0.34) $ (0.39)
Weighted average common shares outstanding:    
Basic 32,454 31,898
Diluted 32,454 31,898

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v3.25.4
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Reconciliation of net loss to net cash used in operating activities:    
Net loss $ (11,028) $ (12,698)
Stock option compensation to employees and directors 3,681 4,420
Stock options issued to consultants 129 125
Common stock issued to consultants 255
Amortization of operating lease right-of-use asset 36 37
Amortization of discount on held-to-maturity securities (143)
Change in operating assets and liabilities:    
Receivables 173 97
Prepaid expenses and other current assets 552 (23)
Accounts payable (360) 319
Accrued expenses (185) 176
Operating lease liability (28) (43)
Net cash used in operating activities (7,173) (7,335)
Cash flows from investing activities:    
Disbursements to acquire short-term investments (44,360) (63,770)
Proceeds from maturities of short-term investments 49,226 68,046
Net cash provided by investing activities 4,866 4,276
Cash flows from financing activities:    
Proceeds from sale of common stock in an at-the-market offering, net of offering expenses of $183 and $168, for the years ended October 31, 2025 and 2024, respectively 2,378 2,955
Proceeds from sale of common stock pursuant to employee stock purchase plan 7 10
Net (costs) proceeds from exercise of stock options (105) 456
Disbursements for purchases of treasury stock (6)
Net cash provided by financing activities 2,280 3,415
Net (decrease) increase in cash and cash equivalents (27) 356
Cash and cash equivalents at beginning of year 1,271 915
Cash and cash equivalents at end of year 1,244 1,271
Supplemental cash flow information:    
Cash proceeds from interest income 686 1,230
Supplemental disclosure of non-cash investing activity:    
Modification to operating lease right-of-use asset (100)
Supplemental disclosure of non-cash financing activity:    
Modification to operating lease liability $ 100

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