Note 11 - Net Income Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three months ended				Nine months ended
(In thousands, except per share data)	September 30,				September 30,
	2018		2017		2018		2017
Net income	$	13,876	$	11,704	$	40,859	$	33,097
Average shares outstanding		22,636		22,542		22,613		22,524
Dilutive securities		332		422		343		460
Average shares outstanding including dilutive securities including dilutive securities		22,968		22,964		22,956		22,984
Net income per share, basic	$	0.61	$	0.52	$	1.81	$	1.47
Net income per share, diluted	$	0.60	$	0.51	$	1.78	$	1.44