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Net Income Per Share:
 6 Months Ended
Jun. 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 7,000 and 922,000 for the three months ended June 30, 2011 and 2010, respectively and 145,000 and 748,000 for the six months ended June 30, 2011 and 2010, respectively.
 
The following table presents the calculation of net earnings per common share (“EPS”) — basic and diluted.
 
 
Three months ended June 30,
 
Six months ended

June 30,
 
2011
 
2010
 
2011
 
2010
Net income
$
9,493


 
$
7,713


 
$
17,566


 
$
11,968


Weighted average number of common shares outstanding (for basic calculation)
13,852


 
13,469


 
13,772


 
13,665


Dilutive securities
405


 
188


 
394


 
223


Weighted average common and common equivalent shares outstanding (for diluted calculation)
14,257


 
13,657


 
14,166


 
13,888


EPS — basic
$
0.69


 
$
0.57


 
$
1.28


 
$
0.88


EPS — diluted
$
0.67


 
$
0.56


 
$
1.24


 
$
0.86