Note 3 - Net Income Per Common Share (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

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

	Year Ended December 31,
(in thousands, except share and per share amounts)	2015		2014		2013
Net Income	$	46,514	$	41,635	$	35,277
Basic - weighted-average shares outstanding:		26,005,858		25,692,699		25,198,556
Effect of dilutive securities:
Employee stock options and other		314,426		407,621		661,185
Diluted - weighted-average shares outstanding:		26,320,284		26,100,320		25,859,741
Net income per share attributable to common shareholders:
Basic	$	1.79	$	1.62	$	1.40
Diluted	$	1.77	$	1.60	$	1.36