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Net Income Per Share:
 9 Months Ended
Sep. 30, 2015
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 and restricted stock units(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 211,000 for the three months ended September 30, 2014. There were no anti-dilutive options for the three months ended September 30, 2015. Options that are anti-dilutive because their exercise price exceeded the average market price of the common stock for the period approximated 44,000 for the nine months ended September 30, 2015 and 235,000 for the nine months ended September 30, 2014.
 
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,
 
2015
 
2014
 
2015
 
2014
Net income
$
16,266

 
$
6,428

 
$
39,522

 
$
18,963

Weighted average number of common shares outstanding (for basic calculation)
15,894

 
15,319

 
15,790

 
15,220

Dilutive securities
681

 
169

 
619

 
277

Weighted average common and common equivalent shares outstanding (for diluted calculation)
16,575

 
15,488

 
16,409


15,497

EPS — basic
$
1.02

 
$
0.42

 
$
2.50

 
$
1.25

EPS — diluted
$
0.98

 
$
0.42

 
$
2.41

 
$
1.22