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Note 11 - Costs to Obtain and Fulfill a Contract - Capitalized Contract Costs Activity (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Amortization of costs $ 717 $ (106) $ 10
Deferred Costs of Acquisition [Member]      
Balance 362    
Capitalization of costs 1,086    
Amortization of costs (369)    
Balance 1,079 362  
Domain Registration Costs [Member]      
Balance 111,066    
Capitalization of costs 173,000    
Amortization of costs (171,500)    
Deferral of costs 173,018    
Recognized costs (171,464)    
Balance $ 112,620 $ 111,066