Note 16 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

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

	May 2022			July 2021			January 2021
Expected volatility		29.5	%		31.6	%		30.8	%
Expected term (years)		6.0			6.0			6.0
Expected dividends		2.52	%		1.98	%		1.86	%
Risk free rate		2.71	%		0.48	%		0.26	%
Grant date fair value	$	5.28		$	5.69		$	4.14

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

						Weighted-
				Weighted-		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
(dollars in thousands, except for share amounts)	Shares			Price		Term in years		Value
Outstanding at beginning of year		943,918		$	14.66
Granted		10,000			21.46
Exercised		(442,308	)		12.29
Forfeited/cancelled		(69,000	)		16.48
Outstanding at end of period		442,610		$	16.89		4.88	$	1,772
Options exercisable		335,605		$	16.32		3.77	$	1,512

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

				Weighted-Average
				Grant Date
(dollars in thousands, except for share amounts)	Shares			Fair Value
Outstanding at beginning of year		60,000		$	17.74
Granted		—			—
Vested		(20,000	)		17.74
Forfeited/cancelled		(40,000	)		17.74
Outstanding at end of period		—		$	—

				Weighted-Average
				Grant Date
(dollars in thousands, except for share amounts)	Shares			Fair Value
Outstanding at beginning of year		—		$	—
Granted		39,497			27.16
Vested		(7,450	)		27.16
Forfeited/cancelled		(15,727	)		27.16
Outstanding at end of period		16,320		$	27.16