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Note 7 - Commitments and Contingencies (Details Textual) - Winspear [Member] - shares
 8 Months Ended
Aug. 11, 2020
Mar. 31, 2021
Strategic Advisory Services Agreement Minimum Term (Month) 90 days  
Strategic Advisory ServicesAgreement Shares Compensation at Inception (in shares) 20,000  
Strategic Advisory Services Agreement Monthly Compensation Common Stock Shares (in shares) 5,000  
Strategic Advisory Services Agreement Additional Twelve Months Term Monthly Compensation Common Stock Shares (in shares) 3,000  
Strategic Advisory Services Agreement Additional Twelve Months Term Maximum Compensation Common Stock Shares (in shares) 71,000  
Agreement Covenant, Common Stock Issued Upon NASDAQ Listing (in shares) 80,000  
Strategic Advisory Services Agreement, Minimum Compensation Common Stock, Shares (in shares) 35,000  
Strategic Advisory Services Agreement, Maximum Compensation Common Stock, Shares (in shares) 151,000  
Stock Issued During Period, Shares, New Issues (in shares)   48,000