CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash	$ 499	$ 565
Trade accounts receivable, less allowances of $84 and $15, respectively	960	804
Inventories, net	2,753	3,263
Prepayments to vendors	20	356
Prepaid and other current assets	139	157
Total current assets	4,371	5,145
Property and equipment, net	115	90
Operating lease, right-of-use asset	312	377
Total assets	4,798	5,612
Current liabilities:
Accrued liabilities	136	90
Accrued legal and professional fees	74	54
Accrued payroll and related benefits	108	148
Accrued sales commissions	10	15
Accrued warranty reserve	88	118
Operating lease liabilities	150	139
Total current liabilities	1,810	2,443
Operating lease liabilities, net of current portion	176	254
Total liabilities	1,986	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 June 30, 2025 and December 31, 2024. Issued and outstanding: 876,447 at June 30, 2025 and December 31, 2024	0	0
Common stock, par value $0.0001 per share: Authorized: 50,000,000 shares at June 30, 2025 and December 31, 2024 Issued and outstanding: 5,260,741 at June 30, 2025 and 4,348,690 at December 31, 2024	1	1
Additional paid-in capital	158,210	157,814
Accumulated other comprehensive loss	(3)	(3)
Accumulated deficit	(155,396)	(154,897)
Total stockholders' equity	2,812	2,915
Total liabilities and stockholders' equity	4,798	5,612
Nonrelated Party
Current assets:
Trade accounts receivable, less allowances of $84 and $15, respectively	960	804
Current liabilities:
Accounts payable	222	970
Related Party
Current liabilities:
Accounts payable	$ 1,022	$ 909