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Property, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, plant and equipment consist of:

 
December 31,
2013
 
December 31,
2012
Land and improvements
$
1,418

 
$
1,418

Buildings
14,950

 
14,945

Machinery and equipment
161,214

 
142,826

Leasehold improvements
16,614

 
3,868

 
194,196

 
163,057

Less accumulated depreciation and amortization
(114,938
)
 
(105,904
)
 
$
79,258

 
$
57,153