Product Warranties (Tables)

9 Months Ended

Sep. 30, 2013

Product Warranties [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

The changes in the Company’s consolidated warranty reserve are as follows:

Balance at December 31, 2012	$	44,486
Warranty expense	11,936
Warranty usage	(20,352		)
Balance at September 30, 2013	$	36,070