Numerator:

Net income

$

8,535

$

9,840

$

12,955

$

16,403

Denominator:

Denominator for basic income per share – weighted-average shares

25,215

26,041

25,149

26,295

Effect of dilutive securities:

Equivalent shares issuable upon conversion of unvested restricted shares

123

111

126

122

Equivalent shares issuable upon conversion of unvested employee stock options

1,251

1,076

1,254

1,147

Denominator for diluted income per share adjusted weighted-average shares and assumed conversions

26,589

27,228

26,529

27,564

Basic income per share

$

0.34

$

0.38

$

0.52

$

0.62

Diluted income per share

$

0.32

$

0.36

$

0.49

$

0.60