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 6 Months Ended
May 16, 2022
May 04, 2020
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Gain (Loss) on Extinguishment of Debt, Total     $ 0 $ 1,213,000 $ 0 $ 1,213,000
Securities Purchase Agreement [Member] | Note Holders [Member]            
Debt Instrument, Face Amount $ 4,320,000          
Debt Instrument, Discount, Percent 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     49,000   49,000  
Interest Paid, Excluding Capitalized Interest, Operating Activities     16,000      
Securities Purchase Agreement [Member] | Note Holders [Member] | Estimate of Fair Value Measurement [Member]            
Debt Instrument, Fair Value Disclosure, Total $ 4,000,000   $ 3,951,000   $ 3,951,000  
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   $ 1,213,000