Commitments and Contingent Liabilites (Tables)

9 Months Ended

Sep. 30, 2016

Commitments and Contingent Liabilities [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

		Warranty Liability
Balance at December 31, 2015	$	8,755
Additions to warranty liability		961
Warranty liability utilized		(682)
Balance at September 30, 2016	$	9,034

Environmental Loss Contingencies [Table Text Block]

		Environmental liability
Balance at December 31, 2015	$	6,640
Additions to environmental obligations		26
Environmental obligations utilized		(79)
Balance at September 30, 2016	$	6,587