Note 10 - Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

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

				Weighted
				Average
	Shares			Fair Value
Nonvested at beginning of year		374,771		$	30.49
Granted		95,084			40.23
Vested		(109,414	)		27.01
Forfeited		(4,551	)		28.70
Nonvested at end of year		355,890		$	34.18

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

				Weighted
				Average
				Exercise
	Shares			Price
Outstanding at beginning of year		5,000		$	36.22
Granted		0			0.00
Exercised		0			0.00
Forfeited or expired		(5,000	)		34.89
Outstanding at end of year		0		$	0
Options exercisable at year end		0		$	0

Schedule of Share-based Compensation Shares Authorized Under Stock Option Plans Information Related to Option Outstanding [Table Text Block]

	2022		2021
Minimum exercise price	$	36.22	$	27.66
Maximum Exercise Price		36.22		36.22
Average Remaining Option Term		0.9		1.7

Schedule of Share Based Compensation Arrangement by Share Based Payment Award Options Information Related to Stock Option Grants and Exercised [Table Text Block]

(Dollars in thousands)	2022		2021
Aggregate intrinsic value of stock options exercised	$	16	$	13
Cash received from stock option exercises		36		50
Tax benefit realized from stock option exercises		0		0
Weighted average per share fair value of stock options granted		NA		NA

Corporate and Bank Board Members [Member]

Notes Tables

Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]

			Total Cost
Grant Year	Shares Granted		(in thousands)		Covered Period
2020		17,716	$	394	June 1, 2020 - May 31, 2021
2021		10,489		344	June 1, 2021 - May 31, 2022
2022		11,166		359	June 1, 2022 - May 31, 2023
2023		11,529		350	June 1, 2023 - May 31, 2024