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Retirement Plans (Tables)
9 Months Ended
Sep. 30, 2013
Compensation and Retirement Disclosure [Abstract]  
Net periodic pension cost
Net periodic pension cost are as follows:
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2013
 
2012
 
2013
 
2012
Service cost
$
7

 
$
18

 
$
23

 
$
53

Interest cost
64

 
72

 
194

 
216

Expected return on assets
(91
)
 
(77
)
 
(273
)
 
(230
)
Amortization of actuarial net loss
28

 
25

 
84

 
75

Net periodic pension cost
$
8

 
$
38

 
$
28

 
$
114

Company contributions
$
81

 
$
339

 
$
284

 
$
538