v3.25.2
Condensed Statements of Cash Flows - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Cash flows from operating activities    
Net loss $ (6,497) $ (11,343)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and accretion 89 49
Stock-based compensation 849 943
Change in fair value of warrant liabilities (326) 1,796
Other (15) 150
Changes in assets and liabilities:    
Accounts receivable (58) 249
Inventories (185) (258)
Prepaid expenses and other assets 345 693
Accounts payable 84 (1,383)
Accrued liabilities 89 (1,328)
Deferred revenue 320  
Total adjustments 1,192 911
Net cash used in operating activities (5,305) (10,432)
Cash flows from investing activities    
Purchases of property and equipment (7)  
Purchases of available-for-sale securities (297) (887)
Proceeds from maturities of short-term investments 1,100 2,200
Net cash provided by investing activities 796 1,313
Cash flows from financing activities    
Payments on term loan principal   (4,286)
Net proceeds from issuances of common stock pursuant to the 2021 Sales Agreement   648
Net proceeds from issuance of common stock upon exercise of stock options and from the ESPP   3
Net cash used in financing activities   (3,635)
Net decrease in cash, cash equivalents, and restricted cash (4,509) (12,754)
Cash, cash equivalents, and restricted cash, beginning of the period [1] 11,161 28,550
Cash, cash equivalents, and restricted cash, end of the period [1] $ 6,652 $ 15,796
[1] Includes restricted cash of $150,000 included in long term restricted investments on the condensed balance sheets at June 30, 2025 and December 31, 2024, respectively.