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WARRANTY (Tables)
6 Months Ended
Jun. 30, 2016
WARRANTY COSTS [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
Changes in the warranty liability consisted of the following (amounts in thousands):
 
2016
 
2015
Warranty liability, January 1
$
23,120

 
$
28,144

Provision for warranty liabilities
3,373

 
5,558

Warranty payments made
(6,205
)
 
(7,171
)
Warranty liability, June 30
$
20,288

 
$
26,531