Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash	$ 41	$ 2,682
Trade accounts receivable, less allowances of $11 and $14, respectively	1,007	1,240
Inventories, net	6,156	7,866
Short-term deposits	610	712
Prepaid and other current assets	788	924
Total current assets	8,602	13,424
Property and equipment, net	433	675
Operating lease right-of-use assets	1,248	292
Total assets	10,283	14,391
Current liabilities:
Accounts payable	1,886	2,235
Accrued liabilities	82	265
Accrued legal and professional fees	66	104
Accrued payroll and related benefits	380	718
Accrued sales commissions	60	57
Accrued warranty reserve	242	295
Deferred revenue	7	268
Operating lease liabilities	189	325
Finance lease liabilities	0	1
Notes payable, net of discounts and loan origination fees	1,521	1,719
Related party promissory note payable	451	0
Credit line borrowings, net of loan origination fees	1,976	2,169
Total current liabilities	6,860	8,156
Operating lease liabilities, net of current portion	1,082	26
Notes payable, net of current maturities, discounts and loan origination fees	815	0
Total liabilities	8,757	8,182
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, 2022 and December 31, 2021, Issued and outstanding: 876,447 at September 30, 2022 and December 31, 2021	0	0
Common stock, par value $0.0001 per share: Authorized: 50,000,000 shares at September 30, 2022 and December 31, 2021, Issued and outstanding: 9,191,108 at September 30, 2022 and 6,368,549 at December 31, 2021	1	0
Additional paid-in capital	148,238	144,953
Accumulated other comprehensive loss	(3)	(3)
Accumulated deficit	(146,710)	(138,741)
Total stockholders' equity	1,526	6,209
Total liabilities and stockholders' equity	$ 10,283	$ 14,391