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CONSOLIDATED BALANCE SHEETS (Unaudited Consolidated Condensed) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Current assets:    
Cash $ 1,134 $ 1,194
Trade accounts receivable, less allowance for doubtful accounts of $9 on September 30, 2020 and on December 31, 2019, respectively 2,451 970
Inventories, net 3,584 2,554
Prepaid expenses and other current assets 599 267
Total current assets 7,768 4,985
Equipment and leasehold improvements, net 2,650 2,255
Operating leases, right-of-use 1,917 2,119
Other assets, net 11 13
TOTAL ASSETS 12,346 9,372
Current liabilities:    
Line of credit, bank 500 500
Line of credit, related party 1,541 224
Current portion of long-term debt, related party 500 500
Current portion of finance lease obligations 186 218
Current portion of operating lease obligations 411 357
Accounts payable 1,668 1,748
Current portion of deferred revenue 309 482
Accrued expenses 647 380
Total current liabilities 5,762 4,409
Long-term portion of finance lease obligations 148 288
Long-term portion of operating lease obligations 1,766 2,035
Long-term convertible loan, related party 1,030 830
PPP Loan SBA 952  
Long-term portion of deferred revenue   93
Asset retirement obligations 212 206
Total long-term liabilities 4,108 3,452
Contingent liabilities
Stockholders' 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; 38,215,069 and 38,136,792 shares issued and outstanding on September 30, 2020 and December 31, 2019, respectively 382 381
Additional paid-in capital 102,055 101,886
Accumulated deficit (99,961) (100,756)
Total stockholders' equity 2,476 1,511
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 12,346 $ 9,372