Contingencies (Tables)

9 Months Ended

Sep. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liability

Changes in the warranty liability for the nine months September 30, 2014, and 2013, are summarized below:

	Nine Months Ended   September 30,
	2014			2013
Aggregate product warranty liability at beginning of period	$	596		$	776
Net aggregate (benefit) expense related to product warranties	(147		)	208
Aggregate reductions for payments	(17		)	(89		)
Aggregate product warranty liability at end of period	$	432		$	895