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Note 16 - Subsequent Events (Details Textual) - Subsequent Event [Member]
Oct. 12, 2023
USD ($)
Nov. 01, 2023
ft²
Office Space in Miami, Florida [Member]    
Lessee, Operating Lease, Term of Contract (Month)   89 months
Area of Real Estate Property | ft²   4,487
Executive Chairman [Member]    
Salary and Wage, Officer, Excluding Cost of Good and Service Sold $ 200,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Grant Date Fair Value $ 675,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period 10 years  
Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Outstanding Stock Maximum 2.25%  
Executive Chairman [Member] | Restricted Stock Units (RSUs) [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Granted $ 675,000