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Note 18 - Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
  

Quoted Prices

             
  

In Active

  

Significant

         
  

Markets for

  

Other

  

Significant

     
  

Identical

  

Observable

  

Unobservable

     

(Dollars in thousands)

 

Assets

  

Inputs

  

Inputs

  

Balance at

 
  

(Level 1)

  

(Level 2)

  

(Level 3)

  

Date Indicated

 

Equity Securities Held at Fair Value - December 31, 2021

                

Equity securities

 $6,724  $-  $1,768  $8,492 
                 

Investment Securities, Available for Sale - December 31, 2021

                

U. S. Government and federal agency

 $-  $2,008  $-  $2,008 

U. S. Treasury notes and bonds

  -   91,979   -   91,979 

State and municipal

  -   514,797   20,050   534,847 

Mortgage-backed

  -   433,115   -   433,115 

Corporate

  -   19,642   1,000   20,642 

Asset-backed Securities

  -   16,294   -   16,294 

Total

 $-  $1,077,835  $21,050  $1,098,885 
                 

Equity Securities Held at Fair Value - December 31, 2020

                

Equity securities

 $1,411  $-  $1,485  $2,896 
                 

Investment Securities, Available for Sale - December 31, 2020

                

U. S. Government and federal agency

 $-  $2,051  $-  $2,051 

U. S. Treasury notes and bonds

  -   2,056   -   2,056 

State and municipal

  -   309,945   10,423   320,368 

Mortgage-backed

  -   246,723   -   246,723 

Corporate

  -   2,589   1,000   3,589 

Total

 $-  $563,364  $11,423  $574,787 
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

(Dollars in thousands)

        
  

2021

  

2020

 

Equity Securities Held at Fair Value

        

Balance, January 1

 $1,485  $1,472 

Total realized and unrealized gains included in noninterest income

  166   13 

Net purchases, sales, calls, and maturities

  117   - 

Balance, December 31

 $1,768  $1,485 
         

Investment Securities, Available for Sale

        

Balance, January 1

 $11,423  $12,367 

Total realized and unrealized gains included in income

  -   - 

Total unrealized gains/(losses) included in other comprehensive income

  1,720   512 

Net purchases, sales, calls, and maturities

  7,907   (1,456)

Balance, December 31

 $21,050  $11,423 

 

Fair Value Measurements, Nonrecurring [Table Text Block]
      Quoted Prices         
      In Active  Significant     
      Markets for  Other  Significant 
  

Balances at

  

Identical

  

Observable

  

Unobservable

 

(Dollars in thousands)

 

Dates

  

Assets

  

Inputs

  

Inputs

 
  

Indicated

  

(Level 1)

  

(Level 2)

  

(Level 3)

 

Impaired Loans

                

December 31, 2021

 $5,433  $-  $-  $5,433 

December 31, 2020

 $7,851  $-  $-  $7,851 
                 

Other Real Estate

                

December 31, 2021

 $194  $-  $-  $194 

December 31, 2020

 $266  $-  $-  $266 
                 

Mortgage Loan Servicing Rights

                

December 31, 2020

 $3,967  $-  $3,967  $-