Note 6 - Net Income Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Numerator:
Net income	$	55,169	$	30,167	$	100,582	$	65,922
Denominator:
Weighted-average outstanding shares - basic		45,796		44,785		45,647		44,620
Effect of dilutive securities		1,958		2,046		2,085		2,130
Weighted-average outstanding shares - diluted		47,754		46,831		47,732		46,750
Net income per share:
Basic	$	1.20	$	0.67	$	2.20	$	1.48
Diluted	$	1.16	$	0.64	$	2.11	$	1.41