v3.25.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Cash flows from operating activities:    
Net loss $ (8,202) $ (6,647)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 18 39
Stock-based compensation 502 282
Amortization of right-of-use asset 51 502
Gain on disposal of fixed assets (2)
Accrued interest expense 6 407
Paid-in-kind interest expense 177
Amortization of debt discount and debt issuance costs 445
Forward sales contract expense 5,335
Change in fair value of warrant liabilities (1) 70
Changes in operating assets and liabilities:    
Other receivables 281 74
Prepaid expenses and other current assets 49 807
Other non-current assets 1
Accounts payable and accrued expenses (53) 461
Operating lease liability (52) 123
Due to related party (437)
Deferred revenue (48)
Other liabilities
Net cash used in operating activities (2,065) (3,747)
Cash flows from investing activities:    
Purchase of property and equipment (101)
Proceeds received from the sale of fixed assets 4
Net cash used in investing activities (97)
Cash flows from financing activities:    
Proceeds received from notes payable 2,250
Proceeds received from exercise of prefunded warrants 4
Proceeds received from the convertible notes financing 1,405
Fees paid related to the convertible notes financing (20)
Net cash provided by financing activities 2,254 1,385
Net increase (decrease) in cash and cash equivalents 189 (2,459)
Cash, cash equivalents and restricted cash at beginning of period 1,729 11,670
Total cash, cash equivalents and restricted cash at end of period 1,918 9,211
Cash paid during the period for:    
Interest
Income taxes
Supplemental disclosure of non-cash investing and financing activities:    
Note warrants issued 755
Unpaid fees incurred in connection with the convertible note financing 46
Paid in-kind interest added to convertible notes principal 177
Adjustment to lease liability and ROU asset due to remeasurement 4,245
Property and equipment purchased but not paid 279
Reconciliation of cash, cash equivalents and restricted cash at end of period:    
Cash and cash equivalents 1,918 5,116
Restricted cash $ 4,095