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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Current assets:    
Cash $ 1,105 $ 2,030
Inventories, net 3,791 4,439
Prepayments to vendors 452 792
Prepaid and other current assets 219 156
Total current assets 6,218 9,189
Property and equipment, net 89 112
Operating lease, right-of-use asset 769 899
Total assets 7,076 10,200
Current liabilities:    
Accrued liabilities 140 110
Accrued legal and professional fees 55 64
Accrued payroll and related benefits 190 199
Accrued sales commissions 24 62
Accrued warranty reserve 117 150
Operating lease liabilities 245 223
Advanced capital contribution 0 450
Promissory notes payable, net of discounts and loan origination fees 0 1,323
Total current liabilities 2,884 6,351
Operating lease liabilities, net of current portion 670 798
Total liabilities 3,554 7,149
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 June 30, 2024 and December 31, 2023. Issued and outstanding: 876,447 at June 30, 2024 and December 31, 2023 0 0
Common stock, par value $0.0001 per share: Authorized: 50,000,000 shares at June 30, 2024 and December 31, 2023 Issued and outstanding: 5,260,741 at June 30, 2024 and 4,348,690 at December 31, 2023 1 0
Additional paid-in capital 157,811 156,369
Accumulated other comprehensive loss (3) (3)
Accumulated deficit (154,287) (153,315)
Total stockholders' equity 3,522 3,051
Total liabilities and stockholders' equity 7,076 10,200
Nonrelated Party    
Current assets:    
Trade accounts receivable 651 1,570
Current liabilities:    
Accounts payable 1,378 1,624
Related Party    
Current assets:    
Trade accounts receivable 0 202
Current liabilities:    
Accounts payable $ 735 $ 2,146