Commitments and Contingent Liabilites (Tables)

3 Months Ended

Mar. 31, 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		269
Warranty liability utilized		(293)
Balance at March 31, 2016	$	8,731

Environmental Loss Contingencies [Table Text Block]

		Environmental liability
Balance at December 31, 2015	$	6,640
Additions to environmental obligations		22
Environmental obligations utilized		(50)
Balance at March 31, 2016	$	6,612