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Note 3 - Intangible Assets, Net (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Apr. 01, 2020
Amortization of Intangible Assets, Total $ 3,177 $ 3,547    
Finite-Lived Intangible Assets, Gross, Total 110,816   $ 109,958  
Software Developed for Internal Use, Not Commenced Amortization [Member]        
Finite-Lived Intangible Assets, Gross, Total $ 948      
Winopoly, LLC [Member]        
Business Acquisition, Percentage of Voting Interests Acquired       50.00%