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Note 4 - Intangible Assets (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   

June 30, 2021

   

December 31, 2020

 
                 

Trademarks

  $ 3,459     $ 3,459  

Indefinite-lived intangible assets

    1,400       1,400  

Customer relationships

    8,663       8,663  
      13,522       13,522  

Accumulated amortization

    (10,457 )     (10,269 )
                 

Intangible assets, net

  $ 3,065     $ 3,253