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Note 8 - Commitments and Off-balance Sheet Risk (Tables)
6 Months Ended
Jun. 30, 2024
Notes Tables  
Summary of Contractual Amounts of Financial Instruments With Off Balance Sheet Risk [Table Text Block]
  

June 30,

  

December 31,

 

(Dollars in thousands)

 2024  2023 
         

Commercial unused lines of credit

 $1,504,628  $1,557,429 

Unused lines of credit secured by 1–4 family residential properties

  77,957   74,120 

Credit card unused lines of credit

  157,426   142,096 

Other consumer unused lines of credit

  40,822   50,063 

Commitments to make loans

  255,382   270,403 

Standby letters of credit

  19,937   19,393 
  $2,056,152  $2,113,504