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Retirement Plans (Tables)
 6 Months Ended
Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]  
Net periodic pension cost
Net periodic pension cost are as follows:
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2014
 
2013
 
2014
 
2013
Interest cost
$
70

 
$
65

 
$
140

 
$
130

Expected return on assets
(93
)
 
(83
)
 
(185
)
 
(166
)
Amortization of actuarial net loss
11

 
28

 
22

 
56

Net periodic pension (benefit) cost
$
(12
)
 
$
10

 
$
(23
)
 
$
20

Company contributions
$
72

 
$
80

 
$
152

 
$
203