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
 6 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Reconciliation of net loss to net cash used in operating activities:    
Net loss $ (7,467) $ (4,669)
Stock option compensation to employees and directors 3,598 1,756
Stock options and warrants issued to consultants 437 282
Common stock issued to consultants 64
Gain on sale of equipment (5)
Amortization of operating lease right-of-use asset 21 29
Change in operating assets and liabilities:    
Prepaid expenses and other current assets (56) (58)
Accounts payable (44) 205
Accrued expenses (37) 77
Operating lease liability (19) (29)
Net cash used in operating activities (3,503) (2,412)
Cash flows from investing activities:    
Disbursements to acquire short-term investments (4,249) (10,399)
Proceeds from maturities of short-term investments 6,349 2,640
Proceeds from sale of equipment 35
Net cash provided by (used in) investing activities 2,100 (7,724)
Cash flows from financing activities:    
Gross proceeds from sale of common stock in a public offering 22,500
Expenses of the public offering (2,208)
Gross proceeds from sale of common stock in an at-the-market offering 11,175
Expenses of the at-the-market offering (341)
Proceeds from sale of common stock pursuant to employee stock purchase plan 7 3
Proceeds from exercise of stock options 293
Net cash provided by financing activities 7 31,422
Net (decrease) increase in cash and cash equivalents (1,396) 21,286
Cash and cash equivalents at beginning of period 29,128 6,417
Cash and cash equivalents at end of period $ 27,732 $ 27,703