Warranty Reserve (Tables)

9 Months Ended

Sep. 30, 2012

Component of Accrued Warranty Expenses

The following table sets forth, in thousands, the accrued warranty expense that is included in accrued liabilities on the condensed consolidated balance sheets as of September 30, 2012 and 2011:

	2012			2011
Accrued warranty balance – January 1,	$	564		$	469
Warranty costs incurred		(895	)		(528	)
Provision for warranty		1,024			538
Accrued warranty balance – September 30,	$	693		$	479