Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Note Payable (Details Textual)

v3.22.2.2
Note 5 - Note Payable (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
May 16, 2022
May 04, 2020
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Gain (Loss) on Extinguishment of Debt, Total     $ 0 $ 0 $ 0 $ 1,213,000
Securities Purchase Agreement [Member] | Note Holders [Member]            
Debt Instrument, Face Amount $ 4,320,000          
Debt Instrument, Discount, Percent 8.00%   8.00%   8.00%  
Debt Instrument, Interest Rate, Stated Percentage 9.00%          
Debt Instrument, Term (Month) 12 months          
Debt Instrument, Convertible, Conversion Price (in dollars per share) $ 4.00          
Percentage of Common Stock Outstanding 19.99%          
Debt Instrument, Redemption Price, Percentage Requirement 50.00%          
Debt Instrument, Redemption Price, Percentage 110.00%          
Interest Expense, Debt, Total     $ 96,000   $ 145,000  
Interest Paid, Excluding Capitalized Interest, Operating Activities     97,000   114,000  
Debt Instrument, Increase, Accrued Interest         31,000  
Debt Instrument, Unamortized Discount, Total     320,000   320,000  
Amortization of Debt Discount (Premium)     $ 39,000   120,000  
Debt Instrument, Periodic Payment, Principal         $ 160,000  
Paycheck Protection Program CARES Act [Member]            
Debt Instrument, Interest Rate, Stated Percentage   1.00%        
Proceeds from Notes Payable, Total   $ 1,200,047        
Gain (Loss) on Extinguishment of Debt, Total           $ 1,213,000