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Note 2 - Marketable Securities and Investment Other Securities (Details Textual) - USD ($)
1 Months Ended
Sep. 30, 2023
Jun. 22, 2022
Apr. 07, 2022
Sep. 30, 2020
Jan. 13, 2021
Steady State, LLC [Member]          
Equipment Sold Value     $ 1,800,000    
Investments, Total     $ 1,400,000    
Equity Method Investment, Other than Temporary Impairment $ 700,000        
Adara Sponser L L C [Member]          
Payments to Acquire Additional Interest in Subsidiaries       $ 250,000  
Common Stock, Value, Subscriptions         $ 750,000
Proceeds from Equity Method Investment, Distribution, Return of Capital   $ 1,000,000