v3.26.3
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Cash flows from operating activities:        
Net loss $ 3,915 $ (8,777) $ (17,600) $ (16,947)
Adjustments to reconcile net loss to net cash used in operating activities:        
Depreciation 349 365 1,057 1,135
Non-cash lease expense     486 418
Issuance costs for common stock warrant liabilities (0) (0) 393 (0)
Loss on initial issuance of equity 0 0 4,582 0
Issuance of common stock as payment of outstanding indebtedness     0 8
Change in fair value of common stock warrant liabilities (7,493) 1,728 (2,301) (267)
Change in fair value of derivative liabilities (3,368) 797 (748) 89
Stock-based compensation expense     3,431 5,017
Accretion of debt discount     706 740
Non-cash interest expense on notes payable     1,166 240
Changes in operating assets and liabilities:        
Accounts receivable     (43) 64
Inventory     (4) 7
Prepaid expenses and other current assets     (772) (817)
Accounts payable     (30) 129
Accrued liabilities     (1,389) (2,772)
Operating lease obligations     (667) (791)
Net cash used in operating activities     (11,733) (13,747)
Cash flows from investing activities:        
Purchases of property and equipment     (52) (11)
Net cash used in investing activities     (52) (11)
Cash flows from financing activities:        
Proceeds from issuance of common stock and warrants, net of offering costs     16,702 8,243
Proceeds from the issuance of debt and derivative liabilities     0 1,500
Payments of notes payable     (274) (295)
Net cash provided by financing activities     16,428 9,448
Net increase (decrease) in cash, cash equivalents and restricted cash     4,698 (4,230)
Cash, cash equivalents and restricted cash – beginning of period     5,247 12,213
Cash, cash equivalents and restricted cash – end of period 9,945 7,983 9,945 7,983
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash     55 80
Reconciliation of cash, cash equivalents and restricted cash to the consolidated balance sheets:        
Cash and cash equivalents 9,887 7,925 9,887 7,925
Restricted cash 58 58 58 58
Cash, cash equivalents and restricted cash $ 9,945 $ 7,983 9,945 7,983
Supplemental disclosure of non-cash investing and financing activities:        
Common stock warrant liability recorded upon public stock offering     5,882 0
Derivative liability recorded upon debt modification     0 687
Derivative liability recorded upon debt issuance     0 239
Supplemental cash flow information:        
Cash paid for interest expense     279 956
Payment of Bonus Liability [Member]        
Supplemental disclosure of non-cash investing and financing activities:        
Stock issued     1,103 0
Payment of Outstanding Indebtedness [Member]        
Supplemental disclosure of non-cash investing and financing activities:        
Stock issued     $ 0 $ 108