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Earnings Per Share
 12 Months Ended
Dec. 31, 2014
Earnings Per Share [Abstract]  
Earnings Per Share
16.
Earnings Per Share
The computations of Basic and Diluted Earnings per Share for the years ended December 31 were as follows:
 
2014
 
2013
 
2012
Numerator:
 
 
 
 
 
Net Earnings
$
50,651

 
$
40,231

 
$
41,584

Denominator:
 

 
 

 
 

Basic - Weighted Average Shares Outstanding
18,217,384

 
18,297,371

 
18,544,896

Effect of dilutive securities:
 

 
 

 
 

Employee stock options
523,474

 
536,082

 
557,120

Diluted - Weighted Average Shares Outstanding
18,740,858

 
18,833,453

 
19,102,016

Basic Earnings per Share
$
2.78

 
$
2.20

 
$
2.24

Diluted Earnings per Share
$
2.70

 
$
2.14

 
$
2.18


Options to purchase 91,199, 132,803 and 233,655 shares of Common Stock were outstanding during 2014, 2013 and 2012, respectively, but were not included in the computation of diluted earnings per share. These exclusions are made if the exercise prices of these options are greater than the average market price of our Common Stock for the period, if the number of shares we can repurchase under the treasury stock method exceeds the weighted shares outstanding in the options, or if we have a net loss, as the effects are anti-dilutive.