Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash	$ 742	$ 171
Accounts receivable, net	747	844
Inventory, net	1,384	1,184
Prepaid expenses and other current assets	90	135
Total current assets	2,963	2,334
Non-current inventory, net	286	372
Property and equipment, net	248	384
Intangible assets, net	878	949
Right-of-use assets	727	868
Deposits and other assets	33	39
Total assets	5,135	4,946
Current liabilities:
Accounts payable	322	508
Accrued liabilities	508	404
Operating lease liabilities, current	230	179
Advances	250	250
Related party note payable	3,325	2,943
Total current liabilities	4,635	4,284
Operating lease liabilities, net of current portion	720	950
Total liabilities	5,355	5,234
Commitments and contingencies (Note 11)
Stockholders' Deficit:
Common stock, $0.001 par value; 120,000,000 shares authorized; 8,004,389 and 8,004,389 shares issued and outstanding at December 30, 2022 and 2021, respectively	8	8
Additional paid-in capital	105,812	105,413
Accumulated deficit	(110,345)	(110,014)
Total stockholders' deficit	(4,520)	(4,588)
Total liabilities, redeemable convertible preferred stock and stockholders' deficit	5,135	4,946
Series D Redeemable Convertible Preferred Stock [Member]
Current liabilities:
Series D redeemable convertible preferred stock, $0.001 par value; 50 shares authorized; 43 shares issued and outstanding; liquidation preference of $4,300 at December 31, 2022 and 2021	4,300	4,300
Nonredeemable Convertible Preferred Stock [Member]
Stockholders' Deficit:
Non-redeemable convertible preferred stock, $0.001 par value; 10,004,310 and 10,004,310 shares authorized, 5,254,310 and 5,254,310 shares issued and outstanding, liquidation preference of $9,781 and $9,766 at December 31, 2022 and December 31, 2021, respectively	$ 5	$ 5