8. Warranty Costs

The contractual warranty period generally ranges from three months to two years with a few extending up to thirty-six months based on product and application of the product. Changes in the carrying amount of accrued product warranty costs for each of the year to date periods ended July 2, 2011 and July 3, 2010 are as follows:


	July 2,			July 3,
	2011			2010

Balance at beginning of period	$	3,583		$	4,047
Additional warranty related to Bauer	$	825		$	—
Accrued current period warranty expense		262			702
Payments		(975	)		(1,346	)

Balance at end of period	$	3,695		$	3,403