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Note 7 - Share-based Compensation (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
  

Three Months Ended September 30,

  

Nine Months Ended September 30,

 
  

2022

  

2021

  

2022

  

2021

 

Stock options and SARs

 $339  $327  $1,080  $1,105 

Restricted stock

  446   545   2,050   1,183 

Performance shares

  143   216   252   469 

Total share-based compensation expense

 $928  $1,088  $3,382  $2,757 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
        Weighted Average  Aggregate 
  

No. of

  

Weighted Average

  

Remaining Life

  

Intrinsic Value

 
  

Shares

  

Exercise Price

  

(in years)

  

(in thousands)

 

Outstanding, January 1, 2022

  779,938  $16.12   3.27  $5,097 

Granted(1)

  149,433   19.42         

Exercised

  (77,474)  10.49         

Lapsed or cancelled

  (38,632)  21.12         

Outstanding, September 30, 2022

  813,265   17.03   3.13   152 

Exercisable, September 30, 2022

  533,589   14.35   2.42   152 
Share-Based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block]
        Weighted Average  Aggregate 
  

No. of

  

Weighted Average

  

Remaining Life

  

Intrinsic Value

 
  

Shares

  

Exercise Price

  

(in years)

  

(in thousands)

 

Outstanding, January 1, 2022

  291,059  $14.99   2.65  $2,205 

Granted(1)

  37,297   20.13         

Exercised

  (24,836)  15.16         

Lapsed or cancelled

  (2,958)  18.84         

Outstanding, September 30, 2022

  300,562   15.58   2.37   27 

Exercisable, September 30, 2022

  232,228   13.48   1.93   27 
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
      

Weighted Average

 
  

No. of

  

Grant Date

 
  

Shares

  

Fair Value

 

Outstanding, January 1, 2022

  458,166  $19.51 

Granted

  30,343   19.97 

Vested

  (113,039)  15.22 

Forfeited

  (18,500)  14.68 

Outstanding, September 30, 2022

  356,970   21.16 
Schedule of Nonvested Performance-Based Units Activity [Table Text Block]
      

Weighted Average

 
  

No. of

  

Grant Date

 
  

Shares

  

Fair Value

 

Outstanding, January 1, 2022

  193,523  $21.50 

Granted

  59,578   19.55 

Vested

  (15,750)  16.97 

Forfeited

  (47,300)  22.56 

Outstanding, September 30, 2022

  190,051   21.00