CONSOLIDATED BALANCE SHEETS (Unaudited Consolidated Condensed) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash	$ 1,773	$ 1,194
Trade accounts receivable, less allowance for doubtful accounts of $9 on June 30, 2020 and December 31, 2019, respectively	2,210	970
Inventories, net	2,457	2,554
Prepaid expenses and other current assets	562	267
Total current assets	7,002	4,985
Equipment and leasehold improvements, net	2,362	2,255
Operating leases, right of use	2,004	2,119
Other assets, net	11	13
Total assets	11,379	9,372
Current liabilities:
Line of credit, bank	500	500
Line of credit, related party	1,489	224
Current portion of long-term debt, related party	500	500
Current portion of finance lease obligations	196	218
Current portion of operating lease obligations	392	357
Accounts payable	1,320	1,748
Current portion of deferred revenue	304	482
Accrued expenses	507	380
Total current liabilities	5,208	4,409
Long-term portion of finance lease obligations	194	288
Long-term portion of operating lease obligations	1,876	2,035
Long-term convertible loan, related party	964	830
PPP Loan SBA	952
Long-term portion of deferred revenue		93
Asset retirement obligations	210	206
Total long-term liabilities	4,196	3,452
Contingent liabilities
Shareholders' equity:
Preferred stock, $.01 par value, 24,088 shares authorized, and no shares issued and outstanding
Common stock, $.01 par value, 55,000,000 shares authorized; 38,136,792 shares issued and outstanding on June 30, 2020 and December 31, 2019	381	381
Additional paid-in capital	101,985	101,886
Accumulated deficit	(100,391)	(100,756)
Total Shareholders' equity	1,975	1,511
Total liabilities and stockholders' equity	$ 11,379	$ 9,372