Quarterly report pursuant to Section 13 or 15(d)

Liquidity and Financial Condition (Details Narrative)

v3.21.2
Liquidity and Financial Condition (Details Narrative) - USD ($)
1 Months Ended 3 Months Ended
Jun. 24, 2020
May 01, 2020
Jun. 30, 2021
Jun. 30, 2020
Mar. 31, 2021
FinancialConditionLineItems [Line Items]          
Net loss     $ 1,098,000 $ (240,000)  
Accumulated deficit     180,375,000   $ 179,277,000
Working capital     6,924,000   $ 8,905,000
Cash received from sale of Micromed     0 $ 610,000  
Proceeds from exercise of warrants     $ 1,490,000    
Paycheck Protection Program [Member] | States Bank In Atlanta [Member]          
FinancialConditionLineItems [Line Items]          
Proceeds from Loans   $ 1,310,000      
Debt Instrument, Maturity Date   Apr. 29, 2022      
Debt Instrument, Interest Rate, Stated Percentage   1.00%      
Current portion of deferred consideration, net of discount          
FinancialConditionLineItems [Line Items]          
Aggregate sale price of Micromed division $ 850,000        
Cash received from sale of Micromed 610,000        
Credit received for future testing services from sale of Micromed 100,000        
Sale of assets, amount held in escrow 60,000        
Accounts receivable remaining from sale of asset $ 81,000