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Note 19 - Stock-based Compensation (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Share-based Compensation Arrangement by Share-based Payment Award Fair Value Assumptions and Methodology [Table Text Block]

Assumptions

 

2022

   

2021

 

Dividend yield

    2.38 %     2.52 %

Expected volatility

    25.42 %     25.19 %

Risk free interest rate

    1.98 %     1.22 %

Expected life (in years)

    7.1       7.1  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three months ended September 30, 2022

 

(in thousands)

 

Stock

Appreciation

Rights

   

Restricted

Stock Awards

   

Restricted

Stock Units

   

Performance

Stock Units

   

Total

 
                                         

Expense

  $ 94     $ 346     $ 80     $ 717     $ 1,237  

Deferred tax benefit

    (20 )     (72 )     (17 )     (150 )     (259 )

Total net expense

  $ 74     $ 274     $ 63     $ 567     $ 978  
   

Three months ended September 30, 2021

 

(in thousands)

 

Stock

Appreciation

Rights

   

Restricted

Stock Awards

   

Restricted

Stock Units

   

Performance

Stock Units

   

Total

 
                                         

Expense

  $ 88     $ 312     $ 79     $ 686     $ 1,165  

Deferred tax benefit

    (18 )     (66 )     (17 )     (144 )     (245 )

Total net expense

  $ 70     $ 246     $ 62     $ 542     $ 920  
   

Nine months ended September 30, 2022

 

(in thousands)

 

Stock

Appreciation

Rights

   

Restricted

Stock Awards

   

Restricted

Stock Units

   

Performance

Stock Units

   

Total

 
                                         

Expense

  $ 282     $ 1,028     $ 252     $ 1,723     $ 3,285  

Deferred tax benefit

    (59 )     (216 )     (53 )     (362 )     (690 )

Total net expense

  $ 223     $ 812     $ 199     $ 1,361     $ 2,595  
   

Nine months ended September 30, 2021

 

(in thousands)

 

Stock

Appreciation

Rights

   

Restricted

Stock Awards

   

Restricted

Stock Units

   

Performance

Stock Units

   

Total

 
                                         

Expense

  $ 264     $ 978     $ 233     $ 1,953     $ 3,428  

Deferred tax benefit

    (55 )     (206 )     (49 )     (411 )     (721 )

Total net expense

  $ 209     $ 772     $ 184     $ 1,542     $ 2,707  
Share-Based Payment Arrangement, Nonvested Award, Cost [Table Text Block]
   

Stock

                                 

(in thousands)

 

Appreciation

   

Restricted

   

Restricted

   

Performance

         

Year ended

 

Rights

   

Stock Awards

   

Stock Units

   

Stock Units

   

Total

 
                                         

Remainder of 2022

  $ 95     $ 346     $ 79     $ 590     $ 1,110  

2023

    311       1,192       2       1,555       3,060  

2024

    205       969             855       2,029  

2025

    146       737                   883  

2026

    88       421                   509  

2027

    10       47                   57  

Total estimated expense

  $ 855     $ 3,712     $ 81     $ 3,000     $ 7,648  
Share-Based Payment Arrangement, Option and Stock Appreciation Rights, Activity [Table Text Block]
                                             

Weighted

 
                     

Weighted

           

Weighted

   

average

 
                     

average

   

Aggregate

   

average

   

remaining

 
           

Exercise

   

exercise

   

intrinsic

   

fair

   

contractual

 

(in thousands, except per share and life data)

 

SARs

   

price

   

price

   

value(1)

   

value

   

life (in years)

 
                                                   

Outstanding, January 1, 2021

    593    

$15.24

- $40.00     $ 27.47     $ 7,706     $ 4.44       5.1  

Granted

    30     47.17 - 50.71       50.48             9.69          

Exercised

    (108 )   15.24 - 19.37       16.40       4,239       2.85          

Forfeited

                                       

Outstanding, December 31, 2021

    515    

$15.24

- $50.71     $ 31.16     $ 16,854     $ 5.08       5.1  
                                                   

Outstanding, January 1, 2022

    515    

$15.24

- $50.71     $ 31.16     $ 16,854     $ 5.08       5.1  

Granted

    33     53.29 - 54.91       54.86             11.82          

Exercised

    (63 )   15.24 - 36.65       16.93       2,658       2.79          

Forfeited

                                       

Outstanding, September 30, 2022

    485    

$15.24

- $54.91     $ 34.65     $ 16,171     $ 5.85       5.2  
                                                   

Vested and exercisable

    348    

$15.24

- $50.71     $ 30.92     $ 12,882     $ 4.99       4.2  

Unvested

    137     35.90 - 54.91       44.06       3,228       8.02       3.2  

Outstanding, September 30, 2022

    485    

$15.24

- $54.91     $ 34.65     $ 16,171     $ 5.85       5.2  
                                                   

Vested in the current year

    44    

$35.90

- $50.71     $ 39.36     $ 1,246     $ 6.73          
Schedule of Nonvested Share Activity [Table Text Block]
           

Grant date

 
           

weighted

 

(in thousands, except per share data)

 

RSAs

   

average cost

 
                 

Unvested at January 1, 2021

    99     $ 36.85  

Shares awarded

    39       46.90  

Restrictions lapsed and shares released

    (34 )     35.48  

Shares forfeited

    (5 )     40.81  

Unvested at December 31, 2021

    99     $ 41.07  
                 

Unvested at January 1, 2022

    99     $ 41.07  

Shares awarded

    35       58.47  

Restrictions lapsed and shares released

    (31 )     40.42  

Shares forfeited

    (6 )     46.91  

Unvested at September 30, 2022

    97     $ 47.25  
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
   

Vesting

           

Shares

 

Grant

 

period

   

Fair

   

expected to

 

year

 

in years

   

value

   

be awarded

 

2020

    3     $ 32.27       65,111  

2021

    3       44.44       47,280  

2022

    3       48.48       51,929