v3.26.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Cash flows from operating activities:    
Net loss $ (14,290) $ (13,004)
Adjustments to reconcile net loss to net cash used in operating activities:    
Non-cash revenue related to sale of future payments (28) 0
Non-cash interest expense on liability related to sale of future payments (0) 394
Net amortization of discount on short term investments (142) (121)
Stock-based compensation 699 989
Revaluation of warrant liability 1,315 (717)
Prepaid expenses and other current assets 35 1,641
Accounts payable (208) (671)
Accrued liabilities 1,255 (1,194)
Net cash used in operating activities (11,364) (12,683)
Cash flows from investing activities:    
Purchase of investments (17,815) (4,979)
Proceeds from sale of investments 10 0
Proceeds from maturities of investments 3,460 8,760
Net cash (used in) provided by investing activities (14,345) 3,781
Cash flows from financing activities:    
Gross proceeds from sale of future payments 0 6,654
Issuance costs related to sale of future payments 0 (521)
Net proceeds from issuance of common stock through equity plans 17 27
Net cash provided by financing activities 22,740 12,044
Net change in cash and cash equivalents (2,969) 3,142
Cash and cash equivalents—Beginning of period 8,863 5,721
Cash and cash equivalents—End of period 5,894 8,863
Noncash Investing and Financing Activities:    
Equity issuance costs from warrant modification 0 251
Offering costs in accounts payable and accrued liabilities 116 0
Prefunded 2024 Warrants [Member]    
Cash flows from financing activities:    
Net proceeds from issuance of common stock in connection with exercise of pre-funded warrants $ 22,723 $ 5,884