v3.26.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Cash flows from operating activities:    
Net loss $ (2,497) $ (471)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 50 67
Stock-based compensation 147 125
Change in fair value of warrant liabilities 9 (35)
Shares issued for services 40
Inventory write downs 33
Other (7) 1
Changes in assets and liabilities    
Accounts receivable 359 (91)
Inventories (465) 307
Prepaid expenses and other assets (339) (422)
Accounts payable 216 225
Right-of-use assets 19 45
Lease liabilities - operating (33) (26)
Deferred revenue, accrued expenses and other 159 (731)
Net cash used in operating activities (2,349) (966)
Cash flows from investing activities:    
Purchases of property and equipment (183)
Net cash used in investing activities (183)
Cash flows from financing activities:    
Proceeds from at-the-market sales of stock, net 2,304 433
Proceeds from exercises of stock options 14
Repayment of financing lease (36)
Net cash provided by financing activities 2,318 397
Net decrease in cash and cash equivalents (214) (569)
Cash and cash equivalents at beginning of period 2,886 3,344
Cash and cash equivalents at end of period $ 2,672 $ 2,775