Stock Options and Stock Appreciation Rights (Tables)

12 Months Ended

Dec. 31, 2025

Stock Options and Stock Appreciation Rights

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, 2024	212,155	$	35.27
Plus: Options granted	—		—
Less:
Options exercised	(42,121)		34.81
Options expired	—		—
Options forfeited	(5,150)		34.03
Options outstanding at December 31, 2025	164,884		35.42	3.37	$	5,115
Options fully vested and exercisable at December 31, 2025	122,733	$	36.20	2.65	$	3,711

Schedule of other information pertaining to option activity

	Twelve Months Ended December 31,
	2025		2024		2023
Weighted average grant date fair value of stock options granted	$	—	$	—	$	—
Total fair value of stock options vested	$	478,000	$	616,286	$	514,000
Total intrinsic value of stock options exercised	$	1,314,000	$	4,640,000	$	1,060,000

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, 2024	456,702	$	39.61
Plus: SARs granted	—
Less:
SARs exercised	(11,583)		39.33
SARs expired	—		—
SARs forfeited	(18,376)		39.33
SARs outstanding at December 31, 2025	426,743		39.63	6.54	$	11,443
SARs fully vested and exercisable at December 31, 2025	62,811	$	39.35	6.50	$	1,701