Note 16 - Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Employee Stock Ownership Plan (ESOP) Disclosures [Table Text Block]

	At December 31,
	2023		2022
Allocated shares		560,914		528,628
Shares committed to be released		—		20,702
Unallocated shares		—		—
Total ESOP shares		560,914		549,330

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

	2023 Grants						2021 Grants
	7 year expiration			5 year expiration			7 year expiration			5 year expiration
Risk-free interest rate		3.79	%		3.87	%		1.06	%		0.74	%
Expected dividend yield		3.00	%		3.00	%		3.00	%		3.00	%
Expected common stock volatility		40.76	%		40.76	%		55.59	%		55.59	%
Expected life (in years)		7			6.5			7			5.5

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

						Weighted Average
Dollars in thousands, except per share amounts	SARs/Options			Aggregate Intrinsic Value		Remaining Contractual Term (Yrs.)		Exercise Price
Outstanding, December 31, 2020		329,203						$	20.47
Granted		177,489							21.85
Exercised		(14,900	)						8.92
Forfeited		—							—
Expired		—							—
Outstanding, December 31, 2021		491,792						$	21.32
Granted		—							—
Exercised		(18,580	)						20.21
Forfeited		—							—
Expired		—							—
Outstanding, December 31, 2022		473,212						$	21.36
Granted		176,384							26.37
Exercised		(10,000	)						12.01
Forfeited		(45,035	)						23.99
Expired		—							—
Outstanding, December 31, 2023		594,561		$	4,686		6.17	$	22.81
Exercisable Options/SARs:
December 31, 2023		290,418		$	2,839		4.12	$	20.92
December 31, 2022		259,037			1,262		4.57		20.33
December 31, 2021		204,116			1,683		4.81		19.20

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

Dollars in thousands, except per share amounts	RSUs			Weighted Average Grant Date Fair Value
Nonvested, December 31, 2020		15,686		$	20.40
Granted		1,500			27.63
Forfeited		—			—
Vested		(4,171	)		20.38
Nonvested, December 31, 2021		13,015		$	21.24
Granted		707			28.28
Forfeited		(313	)		26.63
Vested		(6,205	)		22.65
Nonvested, December 31, 2022		7,204		$	20.49
Granted		—			—
Forfeited		(1,321	)		18.93
Vested		(3,484	)		20.23
Nonvested, December 31, 2023		2,399		$	21.73