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CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
CASH FLOWS FROM OPERATING ACTIVITIES    
Net loss $ (25,315) $ (19,898)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 216 206
Loss on disposal of property and equipment 1 0
Amortization of operating lease right-of-use assets 351 315
Unrealized foreign exchange (gains) losses (173) 103
Stock in lieu of debt repayment 31 0
Stock-based compensation 826 156
Bad debt expense 11 8
Changes in operating assets and liabilities:    
Accounts receivable (478) (176)
Inventory (358) (434)
Prepaid expenses and other current assets (174) (316)
Other long-term assets 0 1
Accounts payable 376 388
Accrued expenses and other current liabilities 2,128 (204)
Deferred revenue 45 36
Operating lease liabilities (351) (276)
Net cash used in operating activities (22,864) (20,091)
CASH FLOWS FROM INVESTING ACTIVITIES    
Purchases of property and equipment (90) (153)
Net cash used in investing activities (90) (153)
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds from issuance of Series H convertible preferred stock 0 15,000
Proceeds from IPO, net of commissions 26,557 0
Payment of IPO offering costs (3,184) 0
Proceeds from promissory note issuance 1,000 0
Repayment of promissory note (1,000) 0
Proceeds from exercises of options on common stock and warrants 231 74
Net cash provided by financing activities 23,604 15,074
Net increase (decrease) in cash and cash equivalents 650 (5,170)
Effect of exchange rate changes on cash and cash equivalents 143 (70)
Cash and cash equivalents at beginning of period 9,319 14,559
Cash and cash equivalents at end of year 10,112 9,319
SUPPLEMENTAL CASH FLOW DISCLOSURES    
Cash paid for income taxes 9 6
Cash paid for interest 15 0
NON-CASH FINANCING AND INVESTING ACTIVITIES    
Underwriters warrants issued in connection with the IPO 519 0
Conversion of all convertible preferred stock to common stock - initial public offering $ 143,625 $ 0