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Note 5 - Non-operating Income (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Other Nonoperating Income, by Component [Table Text Block]
  

Three Months Ended

March 31

 
  

2024

  

2023

 

Dividends and net realized gains and losses on sales of securities

 $2,056  $1,233 

Interest income

  2,538   1,555 

Equity in earnings of unconsolidated investments

  67   1,535 

Gain on sale of unconsolidated company

  1,024   - 

Total non-operating income

 $5,685  $4,323