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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Operating activities:    
Net income (loss) $ 4,235 $ (4,390)
Adjustments to reconcile net income (loss) to cash provided by (used) in operating activities:    
Depreciation and amortization 928 742
Share-based compensation 725 773
Changes in assets and liabilities related to operations:    
Trade accounts receivable, net (1,402) 1,064
Inventories, net (10,236) (1,192)
Prepaid expenses and other assets (1,721) (216)
Accounts payable 2,399 (503)
Deferred revenue 3,218 165
Accrued expenses 3,988 (146)
Net changes in right-of-use assets and lease liabilities – operating (163) 1,697
Net cash provided by (used in) operating activities 1,971 (2,006)
Investing activities:    
Acquisition of equipment and leasehold improvements (4,558) (1,051)
Net cash used in investing activities (4,558) (1,051)
Financing activities:    
Payments to line of credit – accounts receivable, related party (2,810) (1,472)
(Payments to) proceeds from line of credit - inventory, related party (1,000) 2,000
Payments to term loans, related party (2,000) (1,346)
Proceeds from term loans, related party 3,338
Proceeds from issuance of mezzanine preferred stock 6,000
Proceeds from exercise of stock options 2,084 73
Net cash provided by financing activities 2,274 2,593
Decrease in cash (313) (464)
Cash at beginning of period 1,722 2,186
Cash at end of period 1,409 1,722
Supplemental cash flow information:    
Cash paid for interest 637 752
Supplemental non-cash investing and financing activity:    
Accounts payable incurred for the purchase of equipment and leasehold improvements 434 400
Conversion of mezzanine preferred stock 6,000
Right-of-use asset obtained in exchange for a lease liability $ 1,019 $ 182