Product Warranty (Tables)

6 Months Ended

Jun. 30, 2013

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability

The following table summarizes the change in product warranty liability during the six months ended June 30, 2013 (in thousands):

	Six months ended
	June 30, 2013
Beginning balance		$1,006
Cost of warranty claims	(168		)
Accruals for product warranties	37
Total		$875