Note 13 - Employee Stock Plans (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

Nonvested Restricted Stock Shares Activity [Table Text Block]

						Weighted
				Weighted		Average
				Average		Remaining
				Grant Date		Contractual
	Shares			Fair value		Term (in years)
Unvested at December 31, 2021		79,903		$	48.87		1.91
Granted		115,005		$	36.72		1.42
Vested		(77,535	)	$	40.97		-
Cancelled and forfeited		(6,938	)	$	46.94		-
Unvested at September 30, 2022		110,435		$	41.89		1.99
Expected to vest in the future at September 30, 2022		107,527		$	41.89		1.99