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Net Income Per Share:
9 Months Ended
Sep. 30, 2011
Earnings Per Share [Abstract]  
Net Income Per Share [Text Block]
Net Income Per Share:
 
Net income per share is computed by dividing net income by the weighted average number of common shares outstanding. Diluted net income per share is computed by dividing net income by the weighted average number of common shares outstanding plus dilutive securities. Dilutive securities are outstanding common stock options (excluding stock options with an exercise price in excess of the average market value for the period), less the number of shares that could have been purchased with the proceeds from the exercise of the options, using the treasury stock method. Options that are anti-dilutive because their exercise price exceeded the average market price of the common stock for the period approximated 295,000 and 559,000 for the three months ended September 30, 2011 and 2010, respectively and 189,000 and 742,000 for the nine months ended September 30, 2011 and 2010, respectively.
 
The following table presents the calculation of net earnings per common share (“EPS”) — basic and diluted.
 
 
Three months ended September 30,
 
Nine months ended
September 30,
 
2011
 
2010
 
2011
 
2010
Net income
$
9,261

 
$
8,975

 
$
26,827

 
$
20,943

Weighted average number of common shares outstanding (for basic calculation)
13,932

 
13,489

 
13,826

 
13,605

Dilutive securities
252

 
263

 
343

 
233

Weighted average common and common equivalent shares outstanding (for diluted calculation)
14,184

 
13,752

 
14,169

 
13,838

EPS — basic
$
0.66

 
$
0.67

 
$
1.94

 
$
1.54

EPS — diluted
$
0.65

 
$
0.65

 
$
1.89

 
$
1.51