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Note 13 - Interest and Other Income, Net
6 Months Ended
Jun. 30, 2019
Notes to Financial Statements  
Other Nonoperating Income and Expense [Text Block]

13. INTEREST AND OTHER INCOME, NET

 

The components of interest and other income, net, are as follows (in thousands):

 

   

Three Months Ended June 30,

   

Six Months Ended June 30,

 
   

2019

   

2018

   

2019

   

2018

 

Interest income

  $ 1,661     $ 1,563     $ 3,357     $ 3,024  

Amortization of premium on available-for-sale securities

    (95 )     (374 )     (216 )     (808 )

Gain on deferred compensation plan investments

    620       419       2,555       233  

Foreign currency exchange gain (loss)

    73       614       (128 )     214  

Other

    (30 )     10       1       10  

Total

  $ 2,229     $ 2,232     $ 5,569     $ 2,673