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Note 19 - Stock-based Compensation (Tables)
3 Months Ended
Mar. 31, 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 March 31, 2022

 

(in thousands)

 

Stock

Appreciation

Rights

  

Restricted

Stock Awards

  

Restricted

Stock Units

  

Performance

Stock Units

  

Total

 
                     

Expense

 $94  $330  $86  $481  $991 

Deferred tax benefit

  (20)  (70)  (18)  (101)  (209)

Total net expense

 $74  $260  $68  $380  $782 
  

Three months ended March 31, 2021

 

(in thousands)

 

Stock

Appreciation

Rights

  

Restricted

Stock Awards

  

Restricted

Stock Units

  

Performance

Stock Units

  

Total

 
                     

Expense

 $89  $329  $76  $355  $849 

Deferred tax benefit

  (19)  (69)  (16)  (75)  (179)

Total net expense

 $70  $260  $60  $280  $670 
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

 $281  $1,048  $263  $1,581  $3,173 

2023

  309   1,197   2   1,303   2,811 

2024

  202   960      603   1,765 

2025

  143   714         857 

2026

  86   380         466 

2027

  9   32         41 

Total estimated expense

 $1,030  $4,331  $265  $3,487  $9,113 
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 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

  32  54.91-54.91   54.91      11.79     

Exercised

  (10) 15.24-15.24   15.24   497   2.62     

Forfeited

                  

Outstanding, March 31, 2022

  537  $15.24-

$54.91

  $32.88  $10,813  $5.53   5.2 
                          

Vested and exercisable

  398  $15.24-

$50.71

  $29.03  $9,493  $4.69   4.3 

Unvested

  139  35.90-54.91   43.89   1,320   7.93   3.5 

Outstanding, March 31, 2022

  537  $15.24-

$54.91

  $32.88  $10,813  $5.53   5.2 
                          

Vested in the current year

  40  $35.90-

$50.71

  $39.36  $547  $6.82     
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

  30   59.00 

Restrictions lapsed and shares released

  (31)  47.29 

Shares forfeited

  (1)  40.38 

Unvested at March 31, 2022

  97  $46.69 
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
  

Vesting

      

Expected

 

Grant

 

period

  

Fair

  

shares to

 

year

 

in years

  

value

  

be awarded

 

2020

  3  $32.27   65,111 

2021

  3   44.44   47,280 

2022

  3   48.48   36,350