CONSOLIDATED BALANCE SHEETS (Unaudited Consolidated Condensed) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash	$ 510	$ 657
Trade accounts receivable, less allowance for doubtful accounts of $301 for September 30, 2022, and $60 for December 31, 2021	5,368	3,937
Inventories, net	9,596	6,095
Prepaid expenses and other current assets	979	910
Total current assets	16,453	11,599
Equipment and leasehold improvements, net	6,535	4,712
Operating leases, right of use	11,056	12,075
Other assets, net	6	8
Total assets	34,050	28,394
Current liabilities:
Line of credit, related party	5,358	1,351
Current portion of finance lease obligations	11	105
Current portion of operating lease obligations	1,182	589
Accounts payable	5,396	3,566
Current portion of deferred revenue	800	783
Accrued expenses	1,347	946
Total current liabilities	14,094	7,340
Long-term portion of finance lease obligations		6
Long-term portion of operating lease obligations	10,740	11,700
Long-term debt, related party	1,000	1,000
Long-term portion of deferred revenue	569	661
Asset retirement obligations	228	222
Total long-term liabilities	12,537	13,589
Contingent liabilities
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 and 55,000,000 shares authorized; 49,216,180 and 48,893,573 shares issued and outstanding on September 30, 2022 and December 31, 2021, respectively	492	489
Additional paid-in capital	105,012	104,423
Accumulated deficit	(98,085)	(97,447)
Total Shareholders’ equity	7,419	7,465
Total liabilities and shareholders’ equity	$ 34,050	$ 28,394