Quarterly report pursuant to Section 13 or 15(d)

2. Liquidity and Financial Condition (Details Narrative)

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2. Liquidity and Financial Condition (Details Narrative) - USD ($)
1 Months Ended 3 Months Ended
May 02, 2020
Jun. 24, 2020
Jun. 30, 2020
Jun. 30, 2019
Mar. 31, 2020
Net income     $ 240,000 $ 715,000  
Accumulated deficit     (172,006,000)   $ (172,246,000)
Working capital     10,873,000   $ 7,518,000
Cash received from sale of assets     610,000 $ 0  
Proceeds from exercise of warrants     1,490,000    
Asset Purchase Agreement [Member]          
Gross purchase price   $ 850,000      
Cash received from sale of assets   610,000      
Sale of assets, cash received for future testing services   100,000      
Sale of assets, amount held in escrow   60,000      
Accounts receivable remaining from sale of asset   $ 81,000      
Paycheck Protection Program [Member] | States Bank in Atlanta [Member]          
Proceeds from loan $ 1,310,000   $ 1,310,000    
Loan interest rate 1.00%   1.00%    
Loan maturity date Apr. 29, 2022