Note 18 - Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Share-based Compensation Arrangement by Share-based Payment Award Fair Value Assumptions and Methodology [Table Text Block]

	2024			2023			2022
Dividend yield		2.29	%		2.24	%		2.38	%
Expected volatility		28.43	%		27.20	%		25.43	%
Risk free interest rate		4.16	%		3.84	%		1.98	%
Expected life (in years)	7.1			7.1			7.1

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Year Ended December 31, 2024
(in thousands)	Stock Appreciation Rights			Restricted Stock Awards			Restricted Stock Units			Performance Stock Units			Total
Expense	$	284		$	1,699		$	501		$	1,289		$	3,773
Deferred tax benefit		(60	)		(357	)		(105	)		(271	)		(793	)
Total net expense	$	224		$	1,342		$	396		$	1,018		$	2,980

	Year Ended December 31, 2023
(in thousands)	Stock Appreciation Rights			Restricted Stock Awards			Restricted Stock Units			Performance Stock Units			Total
Expense	$	492		$	1,599		$	519		$	1,854		$	4,464
Deferred tax benefit		(104	)		(336	)		(109	)		(390	)		(939	)
Total net expense	$	388		$	1,263		$	410		$	1,464		$	3,525

	Year Ended December 31, 2022
(in thousands)	Stock Appreciation Rights			Restricted Stock Awards			Restricted Stock Units			Performance Stock Units			Total
Expense	$	376		$	1,373		$	332		$	2,313		$	4,394
Deferred tax benefit		(79	)		(289	)		(70	)		(486	)		(924	)
Total net expense	$	297		$	1,084		$	262		$	1,827		$	3,470

Share-Based Payment Arrangement, Nonvested Award, Cost [Table Text Block]

(in thousands) Year Ended	Stock Appreciation Rights		Restricted Stock Awards		Restricted Stock Units		Performance Stock Units		Total
2025	$	336	$	1,478	$	1	$	937	$	2,752
2026		286		1,204		—		937		2,427
2027		216		885		—		—		1,101
2028		126		468		—		—		594
2029		11		70		—		—		81
Total estimated expense	$	975	$	4,105	$	1	$	1,874	$	6,955

Share-Based Payment Arrangement, Option and Stock Appreciation Rights, Activity [Table Text Block]

													Weighted
							Weighted				Weighted		average
							average		Aggregate		average		remaining
				Exercise			exercise		intrinsic		fair		contractual
(in thousands, except per share and years)	SARs			price			price		value(1)		value		life (in years)
Outstanding, January 1, 2022		515		$15.24	-	$50.71	$	31.16	$	16,854	$	5.08		5.1
Granted		34		47.17	-	74.92		55.45		-		12.07
Exercised		(114	)	15.24	-	40.00		21.55		5,258		3.63
Forfeited		—		—				—		—		—
Outstanding, December 31, 2022		435		$19.37	-	$74.92	$	35.60	$	12,784	$	6.02		5.1
Outstanding, January 1, 2023		435		$19.37	-	$74.92	$	35.60	$	12,784	$	6.02		5.1
Granted		29		60.76	-	60.76		60.76		—		16.81
Exercised		(24	)	19.37	-	19.37		19.37		681		3.58
Forfeited		—		—				—		—		—
Outstanding, December 31, 2023		440		$19.44	-	$74.92	$	38.11	$	6,297	$	6.86		4.7
Outstanding, January 1, 2024		440		$19.44	-	$74.92	$	38.11	$	6,297	$	6.86		4.7
Granted		42		47.95	-	54.92		49.20		—		13.75
Exercised		(142	)	22.96	-	40.00		28.74		5,617		4.51
Forfeited		—		—				—		—		—
Outstanding, December 31, 2024		340		$25.76	-	$74.92	$	43.41	$	9,774	$	8.69		5.3
Vested and exercisable		240		$25.76	-	$74.92	$	39.86	$	7,610	$	6.89		4.2
Unvested		100		37.30	-	74.92		51.92		2,164		13.00		3.3
Outstanding, December 31, 2024		340		$25.76	-	$74.92	$	43.41	$	9,774	$	8.69		5.3
Vested in the current year		46		$36.65	-	$60.76	$	47.01	$	1,139	$	9.66

Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights, Award Expiration Period [Table Text Block]

(in thousands, except per share data)
Expiration Year	SARs outstanding		SARs vested and exercisable		Weighted average exercise price
2025		-		-	$	-
2026		20		20		25.76
2027		23		23		40.00
2028		68		68		38.10
2029		47		47		37.06
2030		46		38		37.30
2031		31		20		50.50
2032		34		16		55.45
2033		29		8		60.76
2034		42		—		49.20
		340		240	$	43.41

Schedule of Nonvested Share Activity [Table Text Block]

				Weighted
				average cost
(in thousands, except per share data)	RSAs			at grant date
Unvested at January 1, 2022		99		$	41.07
Shares awarded		35			58.47
Restrictions lapsed and shares vested		(32	)		40.39
Shares canceled		(6	)		47.49
Unvested at December 31, 2022		96		$	47.26
Unvested at January 1, 2023		96		$	47.26
Shares awarded		38			63.04
Restrictions lapsed and shares vested		(33	)		43.77
Shares canceled		(3	)		53.38
Unvested at December 31, 2023		98		$	54.23
Unvested at January 1, 2024		98		$	54.23
Shares awarded		46			52.06
Restrictions lapsed and shares vested		(33	)		49.49
Shares canceled		(9	)		53.10
Unvested at December 31, 2024		102		$	54.92

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

Grant Year	Vesting Period in Years		Fair Value		Shares Expected to be Awarded
2022		3	$	48.48		10,385
2023		3		54.33		18,762
2024		3		41.84		86,136

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares to be Issued Upon Exercise and Remaining Shares Available for Future Issuance [Table Text Block]

	Number of				Shares
	shares to be		Weighted		available for
	issued upon		average		future
Plan category (in thousands)	exercising/vesting		exercise price		issuance (a)
Equity compensation plans approved by security holders:
Stock Appreciation Rights	(b)		(b)			1,037
Restricted Stock Awards		102		N/A	(a)
Restricted Stock Units		10		N/A	(a)
Performance Stock Units	(c)			N/A	(a)
Total shares		112				1,037