Annual report pursuant to Section 13 and 15(d)

Quarterly Results of Operations (Unaudited)

v2.4.0.6
Quarterly Results of Operations (Unaudited)
 12 Months Ended
Dec. 31, 2012
Quarterly Results of Operations (Unaudited) [Abstract]  
Quarterly Financial Information [Text Block]
Quarterly Results of Operations (Unaudited)

The following is a summary of the quarterly results of operations for the years ended December 31, 2012 and 2011: 
 
 
2012
 
 
March 31
 
June 30
 
September 30
 
December 31
Operating revenue
 
$
137,081

 
$
148,326

 
$
143,514

 
$
155,525

Income from operations
 
16,789

 
23,083

 
19,626

 
24,034

Net income
 
10,273

 
14,167

 
12,267

 
15,961

 
 
 
 
 
 
 
 
 
Net income per share:
 
 
 
 
 
 
 
 
   Basic
 
$
0.36

 
$
0.49

 
$
0.42

 
$
0.55

   Diluted
 
$
0.35

 
$
0.48

 
$
0.41

 
$
0.54

 
 
 
 
 
 
 
 
 
 
 
2011
 
 
March 31
 
June 30
 
September 30
 
December 31
Operating revenue
 
$
120,201

 
$
132,192

 
$
135,749

 
$
148,260

Income from operations
 
13,286

 
19,876

 
20,320

 
23,628

Net income
 
7,869

 
11,969

 
12,912

 
14,449

 
 
 
 
 
 
 
 
 
Net income per share:
 
 
 
 
 
 
 
 
   Basic
 
$
0.27

 
$
0.41

 
$
0.44

 
$
0.51

   Diluted
 
$
0.27

 
$
0.40

 
$
0.44

 
$
0.50