CONSOLIDATED BALANCE SHEETS (Unaudited Consolidated Condensed) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash	$ 1,094	$ 2,186
Trade accounts receivable, less allowance for doubtful accounts of $298 for March 31, 2023, and $139 for December 31, 2022	4,380	4,734
Inventories, net	8,118	8,839
Prepaid expenses and other current assets	933	866
Total current assets	14,525	16,625
Equipment and leasehold improvements, net	8,235	7,949
Operating leases, right of use	8,714	8,978
Other assets, net	4	6
Total assets	31,478	33,558
Current liabilities:
Line of credit, related party	6,892	7,282
Accounts payable	6,032	6,363
Current portion of long-term debt, related party	1,000
Current portion of deferred revenue	1,807	2,167
Accrued expenses	1,132	1,023
Total current liabilities	16,863	16,835
Long-term portion of operating lease obligations	9,751	9,823
Long-term debt, related party		1,000
Long-term portion of deferred revenue	35	21
Asset retirement obligations	232	230
Total long-term liabilities	10,018	11,074
Shareholders’ equity:
Preferred stock, $.01 par value, 24,088 shares authorized, and no shares issued and outstanding
Common stock, $.01 par value, 60,000,000 shares authorized; 49,520,571 and 49,320,680 shares issued and outstanding on March 31, 2023 and December 31, 2022, respectively	495	493
Additional paid-in capital	105,534	105,226
Accumulated deficit	(101,432)	(100,070)
Total Shareholders’ equity	4,597	5,649
Total liabilities and shareholders’ equity	$ 31,478	$ 33,558