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Net Income Per Share (Tables)
 3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Basic and diluted net income per share
The following table sets forth the calculation of basic and diluted net income (loss) per share (in thousands, except per share amounts):
 
 
Three Months Ended
 
March 31,
 
2018
 
2017
Numerator:
 
 
 
Income from continuing operations
$
2,502

 
$
860

Income from discontinued operations, net of income taxes
—

 
1,884

Net income
$
2,502

 
$
2,744

Denominator:

 
 
 
Weighted average common shares—basic
12,462

 
13,288

Effect of dilutive securities: stock options
—

 
—

Weighted average common shares—diluted
12,462

 
13,288

Income per share—basic:
 
 
 
Continuing operations
$
0.20

 
$
0.07

Discontinued operations
—

 
0.14

Net income per share—basic
$
0.20

 
$
0.21

Income per share—diluted:
 
 
 
Continuing operations
$
0.20

 
$
0.07

Discontinued operations
—

 
0.14

Net income per share—diluted
$
0.20

 
$
0.21