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Note 1 - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Mortgage Loans Held for Sale [Table Text Block]
  

2022

  

2021

 

Mortgage loans held for sale

 $3,565,000  $16,117,000 

Less: Allowance to adjust to lower of cost or market

  0   0 

Mortgage loans held for sale, net

 $3,565,000  $16,117,000 
Revenue from External Customers by Products and Services [Table Text Block]
  2022  2021  2020 
          

Service charges on deposit and sweep accounts

 $5,952,000  $5,078,000  $4,578,000 

Credit and debit card fees

  8,216,000   7,516,000   5,973,000 

Payroll processing

  2,178,000   1,815,000   1,745,000 

Customer service fees

  852,000   857,000   757,000