v3.26.1
Condensed Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Cash flows from operating activities    
Net loss $ (6,073) $ (5,209)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 9 12
Operating lease right of use asset amortization 50 61
Financing lease right of use asset amortization 211 251
Stock-based compensation 1,406 1,009
Net accretion of discounts on available-for-sale securities (40) (6)
Changes in operating assets and liabilities:    
Accounts receivable (41) 6
Interest receivable (10) (8)
Prepaid and other current assets (450) (95)
Accounts payable 69 269
Accrued expenses 45 (44)
Accrued payroll expenses 132 (926)
Operating lease liability (4) (98)
Deferred revenue 89 (4)
Net cash used in operating activities (4,607) (4,782)
Cash flows from investing activities    
Acquisition of property and equipment 0 (4)
Purchase of available-for-sale securities (26,988) 0
Maturity of available-for-sale securities 0 1,000
Net cash provided by/(used in) investing activities (26,988) 996
Cash flows from financing activities    
Proceeds from registered direct offering of common stock net of commissions and expenses 23,596 0
Proceeds from at-the-market sale of stock, net of commissions and expenses 3,139 2,407
Proceeds from exercise of stock options 124 0
Payments on principal of financing lease (314) (276)
Net cash provided by financing activities 26,545 2,131
Net (decrease) in cash and cash equivalents (5,050) (1,655)
Cash and cash equivalents at beginning of period 19,210 25,778
Cash and cash equivalents at end of period 14,160 24,123
Supplemental information:    
Cash paid for interest 4 21
Cash paid for taxes $ 0 $ 0