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Note 19 - Stock-based Compensation (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Schedule of Share-based Compensation Arrangement by Share-based Payment Award Fair Value Assumptions and Methodology [Table Text Block]

Assumptions

 

2023

   

2022

 

Dividend yield

    2.24 %     2.38 %

Expected volatility

    27.20 %     25.43 %

Risk free interest rate

    3.84 %     1.98 %

Expected life (in years)

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

Three months ended June 30, 2023

 

(in thousands)

 

Stock

Appreciation

Rights

   

Restricted

Stock Awards

   

Restricted

Stock Units

   

Performance

Stock Units

   

Total

 
                                         

Expense

  $ 105     $ 394     $ 133     $ 403     $ 1,035  

Deferred tax benefit

    (22 )     (82 )     (28 )     (85 )     (217 )

Total net expense

  $ 83     $ 312     $ 105     $ 318     $ 818  
   

Three months ended June 30, 2022

 

(in thousands)

 

Stock

Appreciation

Rights

   

Restricted

Stock Awards

   

Restricted

Stock Units

   

Performance

Stock Units

   

Total

 
                                         

Expense

  $ 94     $ 350     $ 87     $ 526     $ 1,057  

Deferred tax benefit

    (19 )     (74 )     (18 )     (111 )     (222 )

Total net expense

  $ 75     $ 276     $ 69     $ 415     $ 835  
   

Six months ended June 30, 2023

 

(in thousands)

 

Stock

Appreciation

Rights

   

Restricted

Stock Awards

   

Restricted

Stock Units

   

Performance

Stock Units

   

Total

 
                                         

Expense

  $ 205     $ 806     $ 265     $ 911     $ 2,187  

Deferred tax benefit

    (43 )     (169 )     (56 )     (192 )     (460 )

Total net expense

  $ 162     $ 637     $ 209     $ 719     $ 1,727  
   

Six months ended June 30, 2022

 

(in thousands)

 

Stock

Appreciation

Rights

   

Restricted

Stock Awards

   

Restricted

Stock Units

   

Performance

Stock Units

   

Total

 
                                         

Expense

  $ 187     $ 682     $ 172     $ 1,007     $ 2,048  

Deferred tax benefit

    (39 )     (144 )     (36 )     (212 )     (431 )

Total net expense

  $ 148     $ 538     $ 136     $ 795     $ 1,617  
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 2023

  $ 197     $ 798     $ 250     $ 803     $ 2,048  

2024

    307       1,389       3       908       2,607  

2025

    248       1,167             485       1,900  

2026

    190       863                   1,053  

2027

    111       507                   618  

2028

    12       42                   54  

Total estimated expense

  $ 1,065     $ 4,766     $ 253     $ 2,196     $ 8,280  
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, 2022

    515     $15.24 -

$50.71

    $ 31.16     $ 16,854     $ 5.08       5.1  

Granted

    34     47.17 -  74.92       55.45             12.07          

Exercised

    (114 )   15.24 -  40.00       21.55       5,258       3.63          

Forfeited

                                       

Outstanding, December 31, 2022

    435     $19.37 -

$74.92

    $ 35.60     $ 12,784     $ 6.02       5.1  
                                                   

Outstanding, January 1, 2023

    435     $19.37 -

$74.92

    $ 35.60     $ 12,784     $ 6.02       5.1  

Granted

    29     60.76 -  60.76       60.76             16.81          

Exercised

                                       

Forfeited

                                       

Outstanding, June 30, 2023

    464     $19.37 -

$74.92

    $ 37.17     $ 8,516     $ 6.69       5.0  
                                                   

Vested and exercisable

    348     $19.37 -

$54.91

    $ 32.97     $ 9,029     $ 5.36       4.0  

Unvested

    116     35.90 -  74.92       49.80       (513 )     10.70       3.6  

Outstanding, June 30, 2023

    464     $19.37 -

$74.92

    $ 37.17     $ 8,516     $ 6.69       5.0  
                                                   

Vested in the current year

    41     $35.90 -

$54.91

    $ 41.65     $ 153     $ 7.61          
Schedule of Nonvested Share Activity [Table Text Block]
           

Grant date

 
           

weighted

 

(in thousands, except per share data)

 

RSAs

   

average cost

 
                 

Unvested at January 1, 2022

    99     $ 41.07  

Shares awarded

    35       58.47  

Restrictions lapsed and shares released

    (32 )     40.39  

Shares forfeited

    (6 )     47.49  

Unvested at December 31, 2022

    96     $ 47.26  
                 

Unvested at January 1, 2023

    96     $ 47.26  

Shares awarded

    38       63.04  

Restrictions lapsed and shares released

    (32 )     43.88  

Shares forfeited

    (2 )     51.79  

Unvested at June 30, 2023

    100     $ 54.18  
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
   

Vesting

           

Shares

 

Grant

 

period

   

Fair

   

expected to

 

year

 

in years

   

value

   

be awarded

 

2021

    3       44.44       47,280  

2022

    3       48.48       36,349  

2023

    3       54.33       26,804