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Note 6 - Contract Assets and Liabilities 1 (Details Textual) - USD ($)
9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Mar. 31, 2020
Contract with Customer, Receivable, after Allowance for Credit Loss $ 500,000   $ 400,000  
Club Membership [Member]        
Contract with Customer, Liability, Revenue Recognized 600,000 $ 600,000    
License [Member]        
Contract with Customer, Liability, Revenue Recognized $ 99,999 $ 99,999    
Contract with Customer, Liability, Noncurrent       $ 2,000,000