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Note 6 - Intangible Assets, Net (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Apr. 01, 2020
Amortization of Intangible Assets, Total $ 14,531 $ 13,197  
Capitalized Computer Software, Additions 2,945 2,713  
Capitalized Computer Software, Impairments 0 425  
Winopoly, LLC [Member]      
Business Acquisition, Percentage of Voting Interests Acquired     50.00%
Capitalized Computer Software, Additions $ 1,400    
Asset Purchase Agreement [Member]      
Capitalized Computer Software, Additions   $ 4,700