Note 6 - Net Income Per Share (Tables)

3 Months Ended

Mar. 31, 2016

Notes Tables

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

	Three Months Ended March 31,
	201 6		201 5
Numerator:
Net income	$	2,062	$	5,967
Denominator:
Basic weighted-average shares outstanding		31,168		31,336
Effect of dilutive options and restricted stock		554		955
Diluted weighted average shares outstanding		31,722		32,291
Net income per share - Basic	$	0.07	$	0.19
Net income per share - Diluted	$	0.07	$	0.18

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended March 31,
	2016		2015
Outstanding options		284		55
Nonvested restricted stock units		1,026		414
Employee Stock Purchase Plan		460		264
Total		1,770		733