Annual report pursuant to Section 13 and 15(d)

Note 6 - Debt (Details Textual)

v3.23.1
Note 6 - Debt (Details Textual) - USD ($)
3 Months Ended 7 Months Ended 12 Months Ended
May 16, 2022
May 04, 2020
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument, Fair Value Disclosure, Change         $ 334,000 $ (49,000)      
Proceeds from Notes Payable, Total               $ 4,000,000 $ 0
Gain (Loss) on Extinguishment of Debt, Total               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 12 months                
Debt Instrument, Convertible, Conversion Price $ 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               389,000  
Interest Paid, Excluding Capitalized Interest, Operating Activities               209,000  
Interest Payable       $ 180,000     $ 180,000 180,000  
Debt Instrument, Unamortized Discount, Total $ 320,000     40,000     40,000 40,000  
Amortization of Debt Discount (Premium)               280,000  
Repayments of Debt             3,781,000    
Convertible Notes Payable, Total       539,000     $ 539,000 539,000  
Debt Instrument, Fair Value Disclosure, Change       $ 285,000       $ 0  
Securities Purchase Agreement [Member] | Note Holders [Member] | Subsequent Event [Member]                  
Interest Paid, Excluding Capitalized Interest, Operating Activities     $ 180,000            
Repayments of Debt     $ 539,000            
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