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Note 12 - Other Income (Expense), Net (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
  

Three Months Ended March 31,

 
  

2023

  

2022

 

Interest income

 $4,808  $3,461 

Amortization of premium on available-for-sale securities

  (260)  (1,348)

Gain (loss) on deferred compensation plan investments

  2,534   (2,192)

Charitable contributions

  (2,000)  (500)

Other

  215   (55)

Total

 $5,297  $(634)