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Note 16 - Accumulated Other Comprehensive Income (Loss) (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   

Net unrealized

   

Net unrealized

   

Minimum

         
   

gains (losses)

   

gains (losses)

   

pension

         
   

on available for

   

on cash

   

liability

         

(in thousands)

 

sale debt securities

   

flow hedges

   

adjustment

   

Total

 

Three months ended March 31, 2024

                               

Balance, beginning of period

  $ (92,678 )   $ (179 )   $ 59     $ (92,798 )

Net current period other comprehensive loss

    (4,775 )     2,519       -       (2,256 )

Balance, end of period

  $ (97,453 )   $ 2,340     $ 59     $ (95,054 )
                                 

Three months ended March 31, 2023

                               

Balance, beginning of period

  $ (115,648 )   $ -     $ 112     $ (115,536 )

Net current period other comprehensive income

    14,217       376       -       14,593  

Balance, end of period

  $ (101,431 )   $ 376     $ 112     $ (100,943 )