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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Current assets:    
Cash $ 897 $ 565
Trade accounts receivable, less allowances of $39 and $15, respectively 665 804
Inventories, net 3,012 3,263
Prepayments to vendors 50 356
Prepaid and other current assets 190 157
Total current assets 4,814 5,145
Property and equipment, net 106 90
Operating lease, right-of-use asset 277 377
Total assets 5,197 5,612
Current liabilities:    
Accrued liabilities 214 90
Accrued legal and professional fees 55 54
Accrued payroll and related benefits 71 148
Accrued sales commissions 12 15
Accrued warranty reserve 87 118
Operating lease liabilities 157 139
Total current liabilities 1,923 2,443
Operating lease liabilities, net of current portion 134 254
Total liabilities 2,057 2,697
STOCKHOLDERS' EQUITY    
Preferred stock, par value $0.0001 per share: Authorized: 5,000,000 shares (3,300,000 designated as Series A Convertible Preferred Stock) at September 30, 2025 and December 31, 2024 Issued and outstanding: 876,447 at September 30, 2025 and December 31, 2024 0 0
Common stock, par value $0.0001 per share: Authorized: 50,000,000 shares at September 30, 2025 and December 31, 2024 Issued and outstanding: 5,739,415 at September 30, 2025 and 5,260,741 at December 31, 2024 1 1
Additional paid-in capital 158,710 157,814
Accumulated other comprehensive loss (3) (3)
Accumulated deficit (155,568) (154,897)
Total stockholders' equity 3,140 2,915
Total liabilities and stockholders' equity 5,197 5,612
Nonrelated Party    
Current assets:    
Trade accounts receivable, less allowances of $39 and $15, respectively 665 804
Current liabilities:    
Accounts payable 325 970
Related Party    
Current liabilities:    
Accounts payable $ 1,002 $ 909