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Note 20 - Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

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

		December 31,
		2024				2023				2022
Dividend yield			2.57	%			3.25	%			2.59	%
Expected volatility			29.55	%			28.24	%			26.86	%
Risk-free interest rate			3.82	%			4.35	%			2.88	%
Expected term in years			6.3				6.5				6.5
Weighted-average grant date fair value per option granted		$	11.36			$	7.61			$	7.13

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

										Weighted-
										Average
						Weighted-				Remaining				Aggregate
						Average				Contractual				Intrinsic
		Shares				Exercise Price				Term In Years				Value
Outstanding at January 1, 2022			613,626			$	25.24				7.17			$	5,362,902
Granted			99,200				30.94				—				—
Less exercised			64,994				19.75				—				790,558
Outstanding at December 31, 2022			647,832			$	26.67				6.84			$	4,627,255
Outstanding at January 1, 2023			647,832			$	26.67				6.84			$	4,627,255
Granted			103,000				30.73				—				—
Less exercised			47,734				10.17				—				970,064
Less forfeited			40,819				32.96				—				—
Outstanding at December 31, 2023			662,279			$	28.12				6.69			$	5,852,975
Outstanding at January 1, 2024			662,279			$	28.12				6.69			$	5,852,975
Granted			75,100				41.98				9.62				—
Less exercised			187,478				23.69				—				3,916,425
Less forfeited			12,000				30.73				—				—
Outstanding at December 31, 2024			537,901			$	31.55				6.75			$	5,187,207
Expected to vest, assuming a 0.31% annual forfeiture rate at, December 31, 2024 (1)			524,787			$	31.46				6.70				5,104,755
Exercisable at December 31, 2024			296,643			$	29.55				5.58			$	3,414,456

Nonvested Restricted Stock Shares Activity [Table Text Block]

						Weighted-Average
						Grant-Date
						Fair Value
Nonvested Shares		Shares				Per Share
Nonvested at January 1, 2022			121,672			$	28.02
Granted			35,050				30.94
Less vested			38,192				28.12
Nonvested at December 31, 2022			118,530			$	28.85
Nonvested at January 1, 2023			118,530			$	28.85
Granted			37,600				30.73
Less vested			44,462				28.24
Forfeited or expired			9,524				30.96
Nonvested at December 31, 2023			102,144			$	29.61
Nonvested at January 1, 2024			102,144			$	29.61
Granted			42,250				41.98
Less vested			37,331				28.46
Less forfeited			4,000				30.73
Nonvested at December 31, 2024			103,063			$	35.05

X

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Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

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