Note 8 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

Nonvested Restricted Stock Shares Activity [Table Text Block]

	Nonvested Shares			Weighted Average Grant Date Fair Value
Nonvested as of December 31, 2023		115,805		$	17.85
Granted		39,653			19.16
Vested		(32,764	)		23.63
Forfeited/cancelled/expired		(1,674	)		17.93
Nonvested as of March 31, 2024		121,020		$	16.71

Schedule of Nonvested Performance-Based Units Activity [Table Text Block]

	Units (expected)			Units (maximum)		Weighted Average Grant Date Fair Value
Unearned as of December 31, 2023		164,231				$	23.06
Awarded		91,691					19.01
Change in estimate		(10,774	)				11.93
Vested shares		(53,041	)				25.24
Forfeited/cancelled/expired		(10,260	)				23.10
Unearned as of March 31, 2024		181,847			302,196	$	21.04

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

	Units (expected)			Weighted Average Grant Date Fair Value
Unearned as of December 31, 2023		188,348		$	22.11
Awarded		81,736			19.01
Vested shares		(73,013	)		22.98
Forfeited/cancelled/expired		(7,360	)		21.53
Unearned as of March 31, 2024		189,711		$	20.46