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Note 16 - Employee Benefits (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Employee Stock Ownership Plan (ESOP) Disclosures [Table Text Block]
  

At December 31,

 
  

2022

  

2021

 

Allocated shares

  528,628   504,154 

Shares committed to be released

  20,702   23,002 

Unallocated shares

     20,702 

Total ESOP shares

  549,330   547,858 
         

Market value of unallocated shares (in thousands)

 $  $568 
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
  

2021 Grants

 
  

7 year expiration

  

5 year expiration

 

Risk-free interest rate

  1.06%  0.74%

Expected dividend yield

  3.00%  3.00%

Expected common stock volatility

  55.59%  55.59%

Expected life (in years)

  7   5.5 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
          

Weighted Average

 

Dollars in thousands, except per share amounts

 

SARs/Options

  

Aggregate Intrinsic Value

  

Remaining Contractual Term (Yrs.)

  

Exercise Price

 

Outstanding, December 31, 2019

  330,703          $20.44 

Granted

              

Exercised

  (1,400)          12.01 

Forfeited

              

Expired

  (100)          18.26 

Outstanding, December 31, 2020

  329,203          $20.47 

Granted

  177,489           21.85 

Exercised

  (14,900)          8.92 

Forfeited

              

Expired

              

Outstanding, December 31, 2021

  491,792          $21.32 

Granted

              

Exercised

  (18,580)          20.21 

Forfeited

              

Expired

              

Outstanding, December 31, 2022

  473,212  $1,760   5.98  $21.36 
                 

Exercisable Options/SARs:

                

December 31, 2022

  259,037  $1,262   4.57  $20.33 

December 31, 2021

  204,116   1,683   4.81   19.20 

December 31, 2020

  177,875   1,118   5.27   17.07 
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

Dollars in thousands, except per share amounts

 

RSUs

  

Weighted Average Grant Date Fair Value

 

Nonvested, December 31, 2019

  2,892  $25.93 

Granted

  13,758   19.63 

Forfeited

      

Vested

  (964)  25.93 

Nonvested, December 31, 2020

  15,686  $20.40 

Granted

  1,500   27.63 

Forfeited

      

Vested

  (4,171)  20.38 

Nonvested, December 31, 2021

  13,015  $21.24 

Granted

  707   28.28 

Forfeited

  (313)  26.63 

Vested

  (6,205)  22.65 

Nonvested, December 31, 2022

  7,204  $20.49