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Note 10 - Accumulated Other Comprehensive Income (Loss) (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Comprehensive Income (Loss) [Table Text Block]
   

Three Months Ended

 
   

March 31,

 

(in thousands)

 

2021

   

2020

 

Foreign currency translation adjustments

               

Balance at beginning of period

  $ (3,420 )   $ (7,018 )

Other comprehensive income (loss) before reclassifications

    (6,842 )     (2,980 )

Amounts reclassified from accumulated other comprehensive loss

    -       -  

Net current-period other comprehensive income (loss)

    (6,842 )     (2,980 )
Net unrealized gains (losses) on investments in securities                
Balance at beginning of period   $ -     $ -  
Other comprehensive income (loss) before reclassifications     166       -  
Amounts reclassified from accumulated other comprehensive loss     -       -  
Net current-period other comprehensive income (loss)     166       -  

Balance at end of period

  $ (10,096 )   $ (9,998 )