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Quarterly Financial Information (Unaudited)
 12 Months Ended
Dec. 31, 2013
Quarterly Financial Information (Unaudited) [Abstract]  
Quarterly Financial Information (Unaudited)
Note 14.Quarterly Financial Information (Unaudited)

(Dollars in thousands except per share amounts)
2013
 
 
4th
 
3rd
 
2nd
 
1st
 
Operating revenue
 
 
$
46,202
  
$
47,088
  
$
47,141
  
$
48,769
 
Operating income
 
 
$
4,469
  
$
4,286
  
$
5,006
  
$
3,857
 
Income before income taxes
 
 
$
3,278
  
$
3,132
  
$
3,888
  
$
2,720
 
Net income
 
 
$
1,923
  
$
1,862
  
$
2,321
  
$
1,626
 
Comprehensive income
 
 
$
2,306
  
$
1,733
  
$
2,290
  
$
1,553
 
Basic earnings per share
 
 
$
0.14
  
$
0.14
  
$
0.17
  
$
0.12
 
Diluted earnings per share
 
 
$
0.14
  
$
0.14
  
$
0.17
  
$
0.12
 
 
 
                
Dividends per share
 
 
$
0.15
  
$
0.145
  
$
0.145
  
$
0.145
 
 
(Dollars in thousands except per share amounts)2012
 
4th
 
3rd
 
2nd
 
1st
 
Operating revenue
 
 
$
46,582
  
$
45,813
  
$
43,857
  
$
46,944
 
Operating income
 
 
$
5,090
  
$
4,557
  
$
4,487
  
$
5,252
 
Income before income taxes
 
 
$
3,983
  
$
2,935
  
$
2,902
  
$
3,861
 
Net income
 
 
$
2,525
  
$
1,741
  
$
1,738
  
$
2,294
 
Comprehensive income
 
 
$
7,564
  
$
1,860
  
$
1,195
  
$
2,373
 
Basic earnings per share
 
 
$
0.19
  
$
0.13
  
$
0.13
  
$
0.17
 
Diluted earnings per share
 
 
$
0.19
  
$
0.13
   
0.13
  
$
0.17
 
 
 
                
Dividends per share
 
 
$
0.145
  
$
0.14
  
$
0.14
  
$
0.14
 

The summation of quarterly earnings per share computations may not equate to the year-end computation as the quarterly computations are performed on an individual basis.