Contingencies (Tables)

6 Months Ended

Jun. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liability

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

	Six Months Ended   June 30,
	2014			2013
Aggregate product warranty liability at beginning of period	$	596		$	776
Net aggregate expense related to product warranties	(75		)	98
Aggregate reductions for payments	(22		)	(72		)
Aggregate product warranty liability at end of period	$	499		$	802