Product Warranty (Tables)

9 Months Ended

Sep. 30, 2014

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability

The following table summarizes the change in product warranty liability during the nine months endedSeptember 30, 2014 (in thousands):

	Nine months ended
	September 30, 2014
Beginning balance	$	578
Cost of warranty claims	(18		)
Accruals for product warranties	52
Total	$	612