Three months ended September 30,

Nine months ended September 30,

2019

2018

2019

2018

Numerator:

Net income

$

15,902

$

13,781

$

58,035

$

40,136

Denominator:

Weighted average shares of common stock outstanding

11,731

11,954

11,823

12,006

Effect of dilutive common stock equivalents

334

143

351

106

Weighted average shares of common stock outstanding

12,065

12,097

12,174

12,112

Earnings per share - basic

$

1.36

$

1.15

$

4.91

$

3.34

Earnings per share - diluted

$

1.32

$

1.14

$

4.77

$

3.31