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 ($)
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Operating activities:    
Net loss $ (5,189,000) $ (4,208,000)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization expense 49,000 46,000
Amortization of right of use assets 54,000 49,000
Stock-based compensation 291,000 239,000
Payments on operating lease liabilities (56,000) (50,000)
Change in fair value of derivative liabilities (11,000)
Changes in operating assets and liabilities:    
Prepaid expenses and other current assets 19,000 8,000
Tax credit receivable (240,000)
Accounts payable and accrued expenses 1,961,000 17,000
Net cash used in operating activities (3,111,000) (3,910,000)
Investing activities:    
Purchases of property and equipment (45,000)
Net cash used in investing activities (45,000)
Financing activities:    
Payments on finance lease liabilities (7,000) (6,000)
Net cash provided by (used in) financing activities (7,000) (6,000)
Net increase (decrease) in cash and restricted cash (3,163,000) (3,916,000)
Cash and restricted cash at beginning of period 37,219,000 58,755,000
Cash and restricted cash at end of period $ 34,056,000 $ 54,839,000