Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash	$ 866	$ 1,422
Accounts receivable, net	1,368	1,258
Inventories, net	5,005	1,593
Prepaid expenses and other current assets	755	450
Total current assets	7,994	4,723
Non-current assets:
Property, plant and equipment, net	431	531
Right-of-use asset, net	755	1,200
Other assets	68	71
Total non-current assets	1,254	1,802
TOTAL ASSETS	9,248	6,525
Current liabilities:
Accounts payable and accrued expenses	4,068	2,525
Derivative liability	899	4,444
Lease liabilities	329	456
Notes payable, current portion	0	1,400
Dividends payable	0	1,650
Deferred revenue	238	268
Total current liabilities	5,534	10,743
Non-current liabilities:
Notes payable, net of current portion	150	1,016
Lease liabilities, net of current portion	433	762
Total non-current liabilities	583	1,778
Total liabilities	6,117	12,521
COMMITMENTS AND CONTINGENCIES (see Note 12)
Stockholders' equity (deficit):
Common stock ($0.001 par value); 500,000,000 shares authorized; 210,890,930 shares and 189,907,526 shares issued and outstanding as of December 31, 2021 and 2020, respectively	211	190
Additional paid-in capital	7,775	3,477
Accumulated deficit	(4,855)	(9,663)
Total stockholders' equity (deficit)	3,131	(5,996)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)	9,248	6,525
Series A Preferred Stock [Member]
Stockholders' equity (deficit):
Convertible preferred stock	0	0
Series B Preferred Stock [Member]
Stockholders' equity (deficit):
Convertible preferred stock	$ 0	$ 0