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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (810) $ (3,299)
Adjustments to reconcile net loss to net cash flows used in operating activities:    
Depreciation and amortization 631 601
Amortization of operating lease right-of-use asset 128 114
Amortization of finance lease right-of-use asset 80 35
Amortization of deferred financing costs, debt discounts and debt premiums 1 1
Gain on settlement of liability (143)  
Stock-based compensation 872 656
Value of stock issued in payment of Board fees and consulting services 132 251
Provision for credit losses (63) 112
Derecognition of finance lease right-of-use asset and liability (4)  
Derecognition of operating lease right-of-use asset and liability (11)  
Loss on disposal of asset 11  
Changes in operating assets and liabilities:    
Accounts receivable (626) 82
Inventories (335) (269)
Other assets 148 188
Accounts payable 539 233
Operating lease liabilities (106) (116)
Deferred revenue 46 150
Accrued expenses (181) 1,094
Net cash provided by (used in) operating activities 309 (167)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchase of property and equipment (197) (70)
Net cash used in investing activities (197) (70)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Principal payments on finance lease obligations (68) (35)
Deposits on finance lease right-of-use assets (20) (28)
Issuance of common stock, net of issuance costs   78
Proceeds from debt   250
Principal payments on long-term debt (283) (251)
Net cash flows (used in) provided by financing activities (371) 14
NET CHANGE IN CASH (259) (223)
CASH AT BEGINNING OF PERIOD 1,389 1,502
CASH AT END OF PERIOD 1,130 1,279
SUPPLEMENTAL CASH FLOW INFORMATION    
Cash paid during the period for interest 54 24
SUPPLEMENTAL DISCLOSURE OF CONSULTING SERVICES OR ANY OTHER NON-CASH COMMON STOCK RELATED ACTIVITY    
Purchases of equipment financed through accounts payable 7  
Operating lease right-of-use assets obtained in exchange for operating lease obligations 1,490 0
Finance lease right-of-use assets obtained in exchange for finance lease obligations $ 340 $ 205