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Net Income (Loss) Per Share
 9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]  
Net Income (Loss) Per Share
Net Income (Loss) Per Share
Basic net income (loss) per share is computed using the weighted-average number of common shares outstanding for the period. Diluted net income (loss) per share is computed by adjusting the weighted-average number of common shares outstanding for the effect of dilutive potential common shares outstanding during the period. Potential common shares included in the diluted calculation consist of incremental shares issuable upon the exercise of outstanding stock options calculated using the treasury stock method.
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
 
Nine Months Ended
 
September 30,
 
September 30,
 
2017
 
2016
 
2017
 
2016
Numerator:
 
 
 
 
 
 
 
Income (loss) from continuing operations

$
(576
)
 
$
1,378

 
$
917

 
$
5,001

Income from discontinued operations, net of income taxes
—

 
241

 
1,938

 
687

Net income (loss)
$
(576
)
 
$
1,619

 
$
2,855

 
$
5,688

Denominator:

 
 
 
 
 
 
 
Weighted average common shares—basic
12,628

 
13,839

 
13,023

 
14,109

Effect of dilutive securities: stock options
—

 
28

 
17

 
10

Weighted average common shares—diluted
12,628

 
13,867

 
13,040

 
14,119

Income (loss) per share—basic:
 
 
 
 
 
 
 
Continuing operations
$
(0.05
)
 
$
0.10

 
$
0.07

 
$
0.35

Discontinued operations
—

 
0.02

 
0.15

 
0.05

Net income (loss) per share—basic
$
(0.05
)
 
$
0.12

 
$
0.22

 
$
0.40

Income (loss) per share—diluted:
 
 
 
 
 
 
 
Continuing operations
$
(0.05
)
 
$
0.10

 
$
0.07

 
$
0.35

Discontinued operations
—

 
0.02

 
0.15

 
0.05

Net income (loss) per share—diluted
$
(0.05
)
 
$
0.12

 
$
0.22

 
$
0.40


For the three and nine months ended September 30, 2017, options to purchase 562,500 and 162,500 shares of common stock were not included in the computation of diluted net income per share because the effect would have been anti-dilutive. For the three and nine months ended September 30, 2016, options to purchase 200,000 shares of common stock were not included in the computation of diluted net income per share because the effect would have been anti-dilutive.