Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Notes Payable (Details Textual)

v3.20.2
Note 8 - Notes Payable (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
May 18, 2020
Nov. 30, 2019
Nov. 30, 2018
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Interest Expense, Debt, Total       $ 0 $ 1,000 $ 5,000 $ 6,000  
Notes Payable, Current, Total       366,000   366,000   $ 305,955
Proceeds from Notes Payable, Total           366,000  
Notes Payable Issued for Prepayment of Insurance Premiums [Member] | IPFS [Member]                
Debt Instrument, Face Amount     $ 393,000          
Debt Instrument, Interest Rate, Stated Percentage     5.10%          
Debt Instrument, Term (Month)     300 days          
Debt Instrument, Periodic Payment, Total     $ 40,000          
Interest Expense, Debt, Total         $ 1,000   $ 6,000  
Notes Payable Issued for Prepayment of Insurance Premiums [Member] | FIF [Member]                
Debt Instrument, Face Amount   $ 349,000            
Debt Instrument, Interest Rate, Stated Percentage   5.00%            
Debt Instrument, Term (Month)   240 days            
Debt Instrument, Periodic Payment, Total   $ 44,000            
Interest Expense, Debt, Total       0   5,000    
Notes Payable, Current, Total       $ 0   $ 0   $ 306,000
Paycheck Protection Program CARES Act [Member]                
Proceeds from Notes Payable, Total $ 366,000