Warranty Reserve (Tables)

6 Months Ended

Jun. 30, 2013

Component of Accrued Warranty Expenses

Accrued warranty expense, which is included in accrued liabilities on the condensed consolidated balance sheets, as of June 30, 2013 and 2012 was as follows (in thousands):

	2013			2012
Accrued warranty balance – January 1,	$	690		$	564
Warranty costs incurred		(571	)		(553	)
Provision for warranty expense		550			524
Accrued warranty balance – June 30,	$	669		$	535