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Note 3 - Intangible Assets, Net (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Jan. 01, 2022
Apr. 01, 2020
Amortization of Intangible Assets $ 2,256 $ 3,141      
Finite-Lived Intangible Assets, Gross 118,845,000   $ 117,685,000    
Software Developed for Internal Use, Not Commenced Amortization [Member]          
Finite-Lived Intangible Assets, Gross $ 971        
Winopoly, LLC [Member]          
Business Acquisition, Percentage of Voting Interests Acquired         50.00%
True North Loyalty, Llc [Member]          
Business Acquisition, Percentage of Voting Interests Acquired       100.00%