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 $ (3,855) $ (3,506)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock-based compensation 540 484
Depreciation and amortization 155 206
Amortization of right of use assets 39 17
Amortization of operating lease liability 209 (21)
Inventory reserve charge (88)
Changes in operating assets and liabilities:    
Accounts receivable (73) 242
Inventories 44 113
Prepaid expenses and other assets 210 207
Accounts payable (61) 159
Accrued expenses and other current liabilities (1,316) (459)
Operating lease liabilities (159)
Net cash used in operating activities (4,355) (2,558)
Cash flows from investing activities:    
Sale of marketable securities 4,537
Purchase of equipment (37)
Net cash used in investing activities 4,500
Cash flows from financing activities:    
Sale of common stock 217
Financing fees (38)
Proceeds from exercise of warrants 1
Net cash provided by financing activities 180
Effect of changes in exchange rates on cash and cash equivalents 2 76
Net decrease in cash and cash equivalents and restricted cash 327 (2,482)
Cash, cash equivalents, and restricted cash – beginning of period 3,700 10,581
Cash, cash equivalents, and restricted cash – end of period 4,027 8,099
Supplemental cash flows disclosures:    
Proceeds from sale of state net operating losses 48 122
Interest paid 5 5
Supplemental schedule of noncash activity:    
Right-of-use asset and liability $ 1,055