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Earnings Per Common Share (Tables)
 6 Months Ended
Jun. 30, 2014
Earnings Per Share [Abstract]  
Computations of basic and diluted earnings (loss) per common share
The following tables set forth the computations of basic and diluted earnings (loss) per common share for the three and six months ended June 30, 2014 and 2013 (in thousands, except per share data):
 
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
Basic earnings (loss) per common share:
 
2014
 
2013
 
2014
 
2013
Numerator:
 
 
 
 
 
 
 
 
Net income (loss)
 
$
(1,468
)
 
$
1,831

 
$
(5,142
)
 
$
1,334

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
 
Weighted-average common shares outstanding
 
29,733

 
29,053

 
29,945

 
28,912

 
 
 
 
 
 
 
 
 
Basic earnings (loss) per common share
 
$
(0.05
)
 
$
0.06

 
$
(0.17
)
 
$
0.05


 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
Diluted earnings (loss) per common share:
 
2014
 
2013
 
2014
 
2013
Numerator:
 
 
 
 
 
 
 
 
Net income (loss)
 
$
(1,468
)
 
$
1,831

 
$
(5,142
)
 
$
1,334

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
 
Weighted-average common shares outstanding
 
29,733

 
29,053

 
29,945

 
28,912

 Incremental shares from stock-based compensation plans
 
—

 
383

 
—

 
454

Denominator for diluted earnings (loss) per common share
 
29,733

 
29,436

 
29,945

 
29,366

 
 
 
 
 
 
 
 
 
Diluted earnings (loss) per common share
 
$
(0.05
)
 
$
0.06

 
$
(0.17
)
 
$
0.05