Note 10 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Stock Options Roll Forward [Table Text Block]

	Option Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2020		10,541		$	16.63
Granted		—			—
Exercised		—			—
Forfeited		(332	)		16.63
Expired		—			—
Outstanding and exercisable at March 31, 2021		10,209		$	16.63		3.72	$	167,836

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

	Shares			Weighted Average Grant Date Value Per Share
Nonvested at December 31, 2020		58,539		$	34.81
Granted		23,638			28.01
Vested		(16,144	)		38.74
Forfeited		(158	)		27.74
Nonvested at March 31, 2021		65,875		$	31.43