Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows (Unaudited)

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Jan. 31, 2023
Jan. 31, 2022
Reconciliation of net loss to net cash used in operating activities:    
Net loss $ (2,354) $ (3,879)
Stock option compensation to employees and directors 957 2,135
Stock options and warrants issued to consultants 81 219
Common stock issued to consultants 25
Amortization of operating lease right-to-use asset 11 10
Change in operating assets and liabilities:    
Receivables (100)
Prepaid expenses and other current assets 210 (188)
Accounts payable (155) 368
Accrued expenses (651) 147
Operating lease liability (12) (9)
Net cash used in operating activities (1,988) (1,197)
Cash flows from investing activities:    
Disbursements to acquire short-term investments (7,835) (3,499)
Proceeds from maturities of short-term investments 7,250 5,349
Net cash provided by (used in) investing activities (585) 1,850
Cash flows from financing activities:    
Proceeds from exercise of stock options 3
Net cash provided by financing activities 3
Net increase (decrease) in cash and cash equivalents (2,570) 653
Cash and cash equivalents at beginning of period 12,360 29,128
Cash and cash equivalents at end of period $ 9,790 $ 29,781