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Net Income Per Share (Tables)
6 Months Ended
Jun. 30, 2019
Earnings Per Share [Abstract]  
Basic and diluted net income per share
The following table sets forth the calculation of basic and diluted net income per share (in thousands, except per share amounts):
 
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2019
 
2018
 
2019
 
2018
Numerator:
 
 
 
 
 
 
 
Net income
$
1,328

 
$
477

 
$
4,448

 
$
2,979

Denominator:
 
 
 
 
 
 
 
Weighted average common shares—basic
12,003

 
12,462

 
11,959

 
12,462

Effect of dilutive securities: stock options
275

 
318

 
292

 
160

Weighted average common shares—diluted
12,278

 
12,780

 
12,251

 
12,622

 
 
 
 
 
 
 
 
Net income per share—basic
$
0.11

 
$
0.04

 
$
0.37

 
$
0.24

Net income per share—diluted
$
0.11

 
$
0.04

 
$
0.36

 
$
0.24