Quarterly report pursuant to Section 13 or 15(d)

Note 11 - 2022 Convertible Note Offering (Details Textual)

v3.22.4
Note 11 - 2022 Convertible Note Offering (Details Textual)
12 Months Ended
Dec. 31, 2022
USD ($)
shares
Jul. 07, 2022
USD ($)
$ / shares
shares
Feb. 17, 2021
shares
Sep. 30, 2022
USD ($)
shares
Nov. 06, 2020
USD ($)
$ / shares
Jun. 04, 2020
USD ($)
$ / shares
Stock Issued During Period, Shares, New Issues | shares 4,000,000   215,625      
Percentage of Principal Amount   15.00%        
Proceeds from Issuance of Convertible Notes, Common Stock and Warrants, Gross   $ 3,500,000        
Debt Issuance Costs, Gross   775,000        
Placement Agents Fees   $ 555,000        
Inducement Shares 2022 [Member]            
Proceeds from Issuance or Sale of Equity, Total       $ 314,523    
Securities Purchase Agreement [Member]            
Stock Issued During Period, Shares, New Issues | shares   63,833        
Notes 2022 [Member]            
Proceeds from Issuance of Private Placement   $ 2,400,000        
Placement Agent 2022 [Member]            
Percentage of Gross Proceeds from Issuance of Private Placement       1000.00%    
Reimbursement of Non-accountable Banking Fees       $ 58,000    
Placement Agent 2022 [Member] | Certain Investors [Member]            
Payments of Stock Issuance Costs       240,000    
Private Placement Notes [Member]            
Proceeds from Issuance of Private Placement   $ 1,100,000        
Warrant Shares [Member]            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares   425,554        
Placement Agent Warrant 2022 [Member]            
Warrants and Rights Outstanding   $ 220,000        
Warrant 2022 [Member]            
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares   $ 9.94        
Long-Term Debt, Total       $ 1,470,133    
Warrant 2022 [Member] | Maximum [Member]            
Ownership Limitation   9.99%        
Placement Agent 2022 [Member]            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares       31,510    
Placement Agent Warrants [Member]            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares       5,358    
Warrants and Rights Outstanding       $ 219,894    
Notes 2022 [Member]            
Debt Instrument, Face Amount   $ 4,230,000        
Debt Instrument, Unamortized Discount, Total   $ 705,000        
Debt Instrument, Interest Rate, Stated Percentage   10.00%        
Debt Instrument, Interest Rate for Amount of Principal or Interest Not Paid When Due   18.00%        
Debt Instrument, Convertible, Conversion Price | $ / shares   $ 9.14        
Debt Instrument, Convertible, Number of Equity Instruments   76,563        
Interest Payable       127,000    
Interest Expense, Debt, Total       499,000    
Accretion of Debt Discount       372,000    
Prepayment Included in Convertible Debt $ 20,000          
Long-Term Debt, Total 2,754,028     2,362,273    
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net, Total 2,195,752     2,567,507    
Notes 2022 [Member] | Minimum [Member]            
Ownership Limitation   4.99%        
Notes 2022 [Member] | Maximum [Member]            
Ownership Limitation   9.99%        
Senior Secured Convertible Notes [Member] | Board Member and Executive Officer [Member]            
Proceeds from Convertible Debt       $ 80,000    
Series 1 Convertible Notes [Member]            
Debt Instrument, Face Amount           $ 550,000
Debt Instrument, Interest Rate, Stated Percentage   10.00%       10.00%
Debt Instrument, Convertible, Conversion Price | $ / shares           $ 54.00
Series 1 Convertible Notes [Member] | Maximum [Member]            
Debt Instrument, Convertible, Conversion Price | $ / shares           $ 64.00
Series 2 Convertible Notes [Member]            
Debt Instrument, Face Amount         $ 1,050,000  
Debt Instrument, Convertible, Conversion Price | $ / shares         $ 50.00  
Convertible Debt, Total   $ 600,000        
Interest Payable   $ 100,000        
Debt Instrument, Failure to Complete Uplist Transaction Fee, Percentage of Outstanding Principal   125.00%        
Senior Secured Convertible Promissory Notes [Member]            
Long-Term Debt, Total $ 1,740,344