Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 4,667	$ 4,614
Accounts receivable, net of allowance of $114 and $93	2,662	1,581
Inventory	1,923	1,856
Prepaid expenses and other current assets	358	193
Total current assets	9,610	8,244
Fixed assets, net of accumulated depreciation of $627 and $554	238	305
Right of use lease asset	365	471
Other assets	33	33
Total assets	10,246	9,053
Current liabilities:
Accounts payable	1,239	1,385
Accrued expenses	1,544	853
Lease liability, current portion	109	102
Taxes payable	8	6
Current portion of accrued interest expense	55	0
Current portion of SBA Loan	0	140
Total current liabilities	3,585	2,486
Net convertible subordinated notes payable, net of current portion	1,778	1,386
Accrued interest expense, net of current portion	0	232
SBA loan, net of current portion	0	195
Lease liability, net of current portion	266	375
Total liabilities	5,629	4,674
Commitment and contingencies (Note 9)	0	0
Shareholders’ equity:
Common stock, no par value: Authorized — 100,000,000; issued and outstanding shares — 64,977,677 shares and 61,975,748 shares, respectively	76,017	73,953
Accumulated other comprehensive income	396	411
Accumulated deficit	(71,796)	(69,985)
Total shareholders’ equity	4,617	4,379
Total liabilities and shareholders’ equity	10,246	9,053
Convertible Subordinated Notes Payable [Member]
Current liabilities:
Convertible notes payable	92	0
Contingent Convertible Debentures [Member]
Current liabilities:
Convertible notes payable	$ 538	$ 0