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Note 14 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2024

Notes Tables

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		September 30, 2024				December 31, 2023
Risk–free interest rate			4.40%				4.52%
Expected volatility			24.1%				29.3%
Expected life, in years			2.9				2.9
Expected dividend yield			2.63%				4.41%

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

		Number of Shares				Weighted Average Exercise Price				Aggregate Intrinsic Value
Options outstanding at January 1, 2023			445,144			$	66.62			$	–
Options granted			299,278				54.44				–
Options exercised			(103,481	)			64.72				–
Options cancelled			(52,407	)			60.58				–
Options outstanding at December 31, 2023			588,534				61.30				–
Options granted			298,097				94.42				–
Options exercised			(211,040	)			63.75				–
Options cancelled			(33,202	)			79.34				–
Options outstanding at September 30, 2024			642,389				74.93			$	32,658,000
Options exercisable at September 30, 2024			153,439				63.87			$	9,498,000

Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Options Outstanding September 30, 2024			Exercise Prices						Weighted Average Exercise Price				Weighted Average Remaining Contractual Life in Years
331,037				53.94	-	69.19				58.88				3.0
311,352				71.64	-	96.03				92.00				4.1
642,389										74.93				3.5

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