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Note 4 - Goodwill (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2022
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Sep. 01, 2020
Apr. 01, 2020
Goodwill, Ending Balance   $ 110,780   $ 165,088    
Goodwill, Period Increase (Decrease), Total   (54,308)        
Goodwill, Impairment Loss   55,400 $ 0      
Goodwill, Acquired During Period   1,092        
Fluent [Member]            
Goodwill, Ending Balance $ 162,000 $ 106,600        
Goodwill, Impairment Loss $ 55,400          
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 27.00% 4.00%        
Winopoly, LLC [Member]            
Goodwill, Ending Balance           $ 1,131
Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage   100.00%     100.00%