Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash	$ 274	$ 69
Accounts receivable, net of allowance for doubtful accounts of $240 and $275 as of December 31, 2021 and 2020, respectively	1,765	1,741
Inventories	4,854	4,063
Prepaid and other current assets	785	231
Total current assets	7,678	6,104
Property, plant and equipment, net	290	372
License agreements, net	7	10
Intangible assets, net	755	927
Goodwill	493	493
Right of use assets, net	1,984	2,468
Other assets, net	703	756
Total assets	11,910	11,130
Current liabilities:
Line of credit	2,400	2,145
Current portion of long-term debt	71	28
Current portion of lease liability	826	794
Accounts payable	2,264	2,014
Accrued compensation	298	370
Accrued benefit pension liability	16	17
Income taxes payable	34	28
Other accrued expenses	151	138
Total current liabilities	6,060	5,534
Subordinated convertible debt with related parties	1,372	791
Lease liability, net of current portion	993	1,771
Long-term debt, net of current portion	200	1,797
Total liabilities	8,625	9,893
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $.001 par value; authorized 5,000 shares; no shares outstanding as of December 31, 2021 and 2020, respectively
Common stock, $.001 par value; authorized 25,000 shares, 13,011 and 11,558 shares issued and outstanding as of December 31, 2021 and 2020, respectively	13	12
Paid-in capital	31,513	29,571
Accumulated deficit	(27,310)	(27,394)
Accumulated other comprehensive loss	(931)	(952)
Total stockholders’ equity	3,285	1,237
Total liabilities and stockholders' equity	$ 11,910	$ 11,130