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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Current assets:    
Cash $ 488 $ 565
Trade accounts receivable, less allowances of $13 and $15, respectively 588 804
Inventories, net 3,233 3,263
Prepayments to vendors 542 356
Prepaid and other current assets 141 157
Total current assets 4,992 5,145
Property and equipment, net 91 90
Operating lease, right-of-use asset 345 377
Total assets 5,428 5,612
Current liabilities:    
Accrued liabilities 57 90
Accrued legal and professional fees 101 54
Accrued payroll and related benefits 132 148
Accrued sales commissions 12 15
Accrued warranty reserve 85 118
Operating lease liabilities 145 139
Total current liabilities 2,369 2,443
Operating lease liabilities, net of current portion 216 254
Total liabilities 2,585 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 March 31, 2025 and December 31, 2024 Issued and outstanding: 876,447 at March 31, 2025 and December 31, 2024 0 0
Common stock, par value $0.0001 per share: Authorized: 50,000,000 shares at March 31, 2025 and December 31, 2024 Issued and outstanding: 5,364,368 at March 31, 2025 and 5,260,741 at December 31, 2024 1 1
Additional paid-in capital 158,010 157,814
Accumulated other comprehensive loss (3) (3)
Accumulated deficit (155,165) (154,897)
Total stockholders' equity 2,843 2,915
Total liabilities and stockholders' equity 5,428 5,612
Nonrelated Party    
Current assets:    
Trade accounts receivable, less allowances of $13 and $15, respectively 588 804
Current liabilities:    
Accounts payable 880 970
Related Party    
Current liabilities:    
Accounts payable $ 957 $ 909