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Note 10 - Subsequent Events (Details Textual) - USD ($)
Aug. 18, 2022
Aug. 11, 2022
Aug. 12, 2022
Jun. 30, 2022
Dec. 31, 2021
Jun. 16, 2021
Common Stock, Par or Stated Value Per Share (in dollars per share)       $ 0.125 $ 0.125 $ 0.125
Subsequent Event [Member] | Mutual Fund [Member]            
Investments, Total     $ 4,500,000      
Subsequent Event [Member] | Merger Agreement [Member] | Cohanzick [Member]            
Business Combination, Reimbursable Amount   $ 594,152        
Subsequent Event [Member] | Merger Agreement [Member] | Cohanzick [Member] | W-1 Warrant [Member]            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)   1,800,000        
Subsequent Event [Member] | Merger Agreement [Member] | Cohanzick [Member] | W-2 Warrant [Member]            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)   250,000        
Common Class A [Member] | Subsequent Event [Member] | Enterprise Diversified [Member]            
Conversion of Stock, Shares Issuable (in shares)   1        
Common Stock, Par or Stated Value Per Share (in dollars per share)   $ 0.0001        
Common Class A [Member] | Subsequent Event [Member] | Merger Agreement [Member] | Cohanzick [Member]            
Stock Issued During Period, Shares, Acquisitions (in shares)   2,400,000        
Common Class A [Member] | Subsequent Event [Member] | Merger Agreement [Member] | Cohanzick, Enterprise Diversified Officers and Directors [Member]            
Stock Issued During Period, Shares, Acquisitions (in shares) 405,000          
Common Class B [Member] | Subsequent Event [Member] | Merger Agreement [Member] | Cohanzick [Member]            
Common Stock, Par or Stated Value Per Share (in dollars per share)   $ 0.0001        
Stock Issued During Period, Shares, Acquisitions (in shares)   1,800,000