Warranty Reserve (Tables)

6 Months Ended

Jun. 30, 2012

Component of Accrued Warranty Expenses

Accrued warranty expense, which is included in accrued liabilities on the condensed consolidated balance sheets, as of June 30, 2012 and 2011 is as follows (in thousands):

	2012			2011
Accrued warranty balance – January 1,	$	564		$	469
Warranty costs incurred		(553	)		(355	)
Provision for warranty		524			378
Accrued warranty balance – June 30,	$	535		$	492