Inventories (Details) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Mar. 31, 2012
Inventory Disclosure [Abstract]
Raw materials	$ 1,353	$ 1,260
Finished goods	74,476	74,596
Inventory, gross	75,829	75,856
Excess and obsolete inventory reserves	(19,123)	(18,900)
Inventory, net	$ 56,706	$ 56,956	[1]

[1] Derived from audited financial statements