Note 13 - Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Stock Options Roll Forward [Table Text Block]

						Weighted
				Weighted		Average		Aggregate
				Average		Remaining		Intrinsic
	Option			Exercise		Contractual Term		Value
	Shares			Price		(In Years)		($000)
Outstanding at December 31, 2020		10,541		$	16.63
Granted		—			—
Exercised		(5,346	)		16.63
Forfeited		(332	)		16.63
Expired		—			—
Outstanding at December 31, 2021		4,863		$	16.63		2.97	$	102
Exercisable at December 31, 2021		4,863		$	16.63		2.97	$	102

Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Options Outstanding and Exercisable
			Weighted-Average
	Number of		Remaining
Range of	Outstanding		Contractual Life		Weighted-Average
Exercise Prices	Options		(In Years)		Exercise Price
$15.00 to $20.00		4,863		2.97	$	16.63

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

				Weighted
				Average Grant
	Shares			Date Value Per Share
Nonvested at December 31, 2020		58,539		$	34.81
Granted		27,712			29.39
Vested		(24,797	)		36.04
Forfeited		(2,993	)		31.14
Nonvested at December 31, 2021		58,461			31.91