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Earnings Per Common Share (Tables)
 9 Months Ended
Sep. 30, 2013
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 per common share for the three and nine months ended September 30, 2013 and 2012 (in thousands, except per share data):
 
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
Basic earnings per common share:
 
2013
 
2012
 
2013
 
2012
Numerator:
 
 
 
 
 
 
 
 
Net earnings
 
$
4,877

 
$
2,565

 
$
6,211

 
$
3,859

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
 
Weighted-average common shares outstanding
 
29,396

 
25,541

 
29,075

 
25,370

 
 
 
 
 
 
 
 
 
Basic earnings per common share
 
$
0.17

 
$
0.10

 
$
0.21

 
$
0.15


 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
Diluted earnings per common share:
 
2013
 
2012
 
2013
 
2012
Numerator:
 
 
 
 
 
 
 
 
Net earnings
 
$
4,877

 
$
2,565

 
$
6,211

 
$
3,859

 
 
 
 
 
 
 
 
 
Denominator:
 
 
 
 
 
 
 
 
Weighted-average common shares outstanding
 
29,396

 
25,541

 
29,075

 
25,370

 Incremental shares from stock-based compensation plans
 
419

 
709

 
442

 
572

Denominator for diluted earnings per common share
 
29,815

 
26,250

 
29,517

 
25,942

 
 
 
 
 
 
 
 
 
Diluted earnings per common share
 
$
0.16

 
$
0.10

 
$
0.21

 
$
0.15