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Business Combinations Business Acquisitions, Pro Forma Information (Tables)
 6 Months Ended
Jun. 30, 2015
Sabine, Inc. [Member]  
Business Combinations, Pro Forma Information [Line Items]  
Business Acquisition, Pro Forma Information [Table Text Block]
Revenue and earnings of the combined entity as though the business combination occurred as of January 1, 2014 were as follows:
 
Three months ended June 30,
 
Six months ended June 30,
 
2015
 
2014
 
2015
 
2014
Revenue
$
14,013

 
$
14,111

 
$
27,600

 
$
27,088

Earnings
1,515

 
934

 
2,787

 
1,184

Basic earnings per common share
$
0.17

 
$
0.10

 
$
0.31

 
$
0.13

Diluted earnings per common share
$
0.16

 
$
0.10

 
$
0.29

 
$
0.12