Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash		$ 1,316	$ 52
Trade accounts receivable, less allowances of $79 and $26, respectively		841	445
Inventories, net		5,304	5,476
Short-term deposits		630	592
Prepaid and other current assets		217	232
Receivable for claimed Employee Retention Tax Credit		0	445
Total current assets		8,308	7,242
Property and equipment, net		60	76
Operating lease, right-of-use asset		1,034	1,180
Total assets		9,402	8,498
Current liabilities:
Accounts payable		2,908	2,204
Accrued liabilities		116	145
Accrued legal and professional fees		89	0
Accrued payroll and related benefits		268	261
Accrued sales commissions		32	76
Accrued warranty reserve		146	183
Operating lease liabilities		210	198
Promissory notes payable, net of discounts and loan origination fees		1,335	2,618
Credit line borrowings, net of loan origination fees		284	1,447
Total current liabilities		5,388	7,946
Operating lease liabilities, net of current portion		915	1,029
Total liabilities		6,303	8,975
STOCKHOLDERS' EQUITY (DEFICIT)
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, 2023 and December 31, 2022. Issued and outstanding: 876,447 at June 30, 2023 and December 31, 2022		0	0
Common stock, par value $0.0001 per share: Authorized: 50,000,000 shares at June 30, 2023 and December 31, 2022. Issued and outstanding: 3,495,924 at June 31, 2023 and 1,406,920 at December 31, 2022	[1]	0	1
Additional paid-in capital		154,624	148,545
Accumulated other comprehensive loss		(3)	(3)
Accumulated deficit		(151,522)	(149,020)
Total stockholders' equity (deficit)		3,099	(477)
Total liabilities and stockholders' equity (deficit)		9,402	8,498
Related Party
Current liabilities:
Related party promissory notes payable		$ 0	$ 814

[1] * Shares outstanding for prior periods have been restated for the 1-for-7 reverse stock split effective June 16, 2023.