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Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2015
Accumulated Other Comprehensive Loss [Abstract]  
Accumulated Other Comprehensive Loss [Table Text Block]

 

 

 

 

 

 

 

 

 

 

 

 

2015

 

2014

 

 

 

Pension and post-retirement benefit plan adjustments

$

 (3,069)

$

 (4,089)

Unrealized loss on interest rate swap contracts

 

 (121)

 

 -

Foreign currency translation adjustments

 

 (14,750)

 

 (7,803)

 

$

 (17,940)

$

 (11,892)