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Note 5 - Non-operating Income (Tables)
6 Months Ended
Jun. 30, 2024
Notes Tables  
Schedule of Other Nonoperating Income, by Component [Table Text Block]
  

Three Months Ended

June 30

  

Six Months Ended

June 30

 
  

2024

  

2023

  

2024

  

2023

 

Dividends and net realized gains and losses on sales of securities

 $1,724  $1,681  $3,780  $2,914 

Interest income

  2,648   1,794   5,186   3,349 

Equity in earnings of unconsolidated investments

  584   221   651   1,756 

Gain on sale of unconsolidated company

  -   -   1,024   - 

Total non-operating income

 $4,956  $3,696  $10,641  $8,019