v3.26.1
Stock Options (Tables)
6 Months Ended
Jun. 30, 2026
Stock Options  
Summary of option activity under stock option plans

  ​ ​ ​

  ​ ​ ​

  ​ ​ ​

Weighted

  ​ ​ ​

  ​ ​ ​

Weighted

average

average

remaining

Aggregate

Number of

exercise

contractual

intrinsic

options

price

term (years)

value ($)

(in Thousands)

Options outstanding at December 31, 2025

 

164,884

$

35.42

Plus: Options granted

 

Less:

Options exercised

 

(21,587)

34.59

Options expired

 

Options forfeited

 

Options outstanding at June 30, 2026

 

143,297

 

35.55

 

2.92

$

5,789

Options fully vested and exercisable at June 30, 2026

 

113,021

$

35.63

 

2.32

$

4,556

Summary of activity under the SAR Plan

  ​ ​ ​

  ​ ​ ​

  ​ ​ ​

Weighted

  ​ ​ ​

  ​ ​ ​

Weighted

average

Number of

average

remaining

Aggregate

stock appreciation

exercise

contractual

intrinsic

rights

price

term (years)

value ($)

(in Thousands)

SARs outstanding at December 31, 2025

 

426,743

$

39.63

Plus: SARs granted

 

Less:

SARs exercised

 

(5,963)

39.33

SARs expired

 

SARs forfeited

 

(950)

39.33

SARs outstanding at June 30, 2026

 

419,830

 

39.63

6.04

$

15,248

SARs fully vested and exercisable at June 30, 2026

 

62,175

$

39.45

 

6.01

$

2,261