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Note 16 - Other Income (Expenses) (Details Textual) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Aug. 01, 2020
Nov. 30, 2015
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Write Down of Intangible Assets and Capitalized Contract Costs     $ 3,513 $ 0 $ 0 [1]
Joint Marketing Agreement [Member]          
Other Nonrecurring Gain   $ 1,500     500
Other Non-recurring Gain, Term of Recognition (Year)   3 years      
Purchase Agreement With DISH Wireless LLC [Member]          
Purchase Agreement, Duration of Monthly Fees (Year) 10 years        
Purchase Agreement, Income     $ 11,125 $ 0 $ 0
Write Down of Intangible Assets and Capitalized Contract Costs $ 3,500        
[1] The Company has initially applied ASC 2016-02 (Topic 842) on January 1, 2019 (note 2(u)). The accounting standard was adopted using the modified retrospective method, under this method the comparative period was not restated.