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Segment Disclosure - Net Sales and Long-lived Assets by Geographic Area (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Apr. 28, 2012
Net sales:
United States	$ 115,759	$ 98,100
Outside U.S.	17,160	20,598
Net sales	132,919	118,698
Long-lived assets:
United States	63,769		66,350
Outside U.S.	1,887		2,046
Long-lived assets	$ 65,656		$ 68,396

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Amount of long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets, located in the entity's country of domicile.

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