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Note 3 - Intangible Assets, Net (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Apr. 01, 2020
Amortization of Intangible Assets, Total $ 3,169 $ 3,659 $ 6,346 $ 7,206    
Finite-Lived Intangible Assets, Gross, Total 111,020   111,020   $ 109,958  
Software Developed for Internal Use, Not Commenced Amortization [Member]            
Finite-Lived Intangible Assets, Gross, Total $ 790   $ 790      
Winopoly, LLC [Member]            
Business Acquisition, Percentage of Voting Interests Acquired           50.00%