Note 11 - Net Income Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

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

	Three months ended
(In thousands, except per share data)	March 31,
	2018		2017
Net income	$	13,404	$	10,791
Average shares outstanding		22,577		22,492
Dilutive securities		365		510
Average shares outstanding including dilutive securities including dilutive securities		22,942		23,002
Net income per share, basic	$	0.59	$	0.48
Net income per share, diluted	$	0.58	$	0.47