Valuation and Qualiifying Accounts (Details) (USD $) In Thousands	12 Months Ended
Sep. 30, 2011	Oct. 01, 2010	Oct. 02, 2009
Allowance for Doubtful Accounts [Member]
Valuation And Qualifying Accounts [Roll Forward]
Valuation Allowances and Reserves, Balance	$ 1,177	$ 2,845	$ 1,048
Valuation Allowances and Reserves, Charged to Cost and Expense	255	728	2,507
Valuation Allowances and Reserves, Deductions	(967)	(2,396)	(710)
Valuation Allowances and Reserves, Charged to Other Accounts	320	0	0
Valuation Allowances and Reserves, Balance CLONE	785	1,177	2,845
Allowance for Sales Returns [Member]
Valuation And Qualifying Accounts [Roll Forward]
Valuation Allowances and Reserves, Balance	1,252	1,766	2,135
Valuation Allowances and Reserves, Charged to Cost and Expense	4,627	2,130	3,132
Valuation Allowances and Reserves, Deductions	(3,398)	(2,644)	(3,501)
Valuation Allowances and Reserves, Charged to Other Accounts	814	0	0
Valuation Allowances and Reserves, Balance CLONE	3,295	1,252	1,766
Inventory Valuation Reserve [Member]
Valuation And Qualifying Accounts [Roll Forward]
Valuation Allowances and Reserves, Balance	11,800	11,710	7,829
Valuation Allowances and Reserves, Charged to Cost and Expense	6,435	7,259	8,665
Valuation Allowances and Reserves, Deductions	(6,783)	(7,169)	(4,784)
Valuation Allowances and Reserves, Charged to Other Accounts	0	0	0
Valuation Allowances and Reserves, Balance CLONE	$ 11,452	$ 11,800	$ 11,710

Valuation And Qualifying Accounts [Roll Forward]

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- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690

+ Details

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- Definition

+ References

+ Details

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- Definition

+ References

+ Details

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- Definition

Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

+ References

+ Details

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