Goodwill and Acquired Intangible Assets (Details Textual) (USD $)	3 Months Ended
	Jun. 29, 2012 Y	Jul. 01, 2011
Goodwill and Acquired Intangible Assets (Textual) [Abstract]
Change in goodwill related to foreign currency translation	$ 300,000
Other acquired intangible assets estimated useful lives, minimum	3
Other acquired intangible assets estimated useful lives, maximum	10
Amortization of acquired intangible assets	$ 4,064,000	$ 4,772,000