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Supplemental Financial Information (Schedules Of Concentration Of Risk, By Risk Factor) (Details) (Customer Concentration Risk [Member])	3 Months Ended					12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended
	Mar. 30, 2013 Sales Revenue, Services, Net [Member] Customer A [Member]	Mar. 31, 2012 Sales Revenue, Services, Net [Member] Customer A [Member]	Mar. 30, 2013 Sales Revenue, Services, Net [Member] Customer B [Member]	Mar. 30, 2013 Sales Revenue, Services, Net [Member] Customer C [Member]	Mar. 30, 2013 Gross Receivables [Member] Customer A [Member]	Dec. 29, 2012 Gross Receivables [Member] Customer A [Member]	Mar. 30, 2013 Gross Receivables [Member] Customer B [Member]	Dec. 29, 2012 Gross Receivables [Member] Customer B [Member]	Mar. 30, 2013 Gross Receivables [Member] Customer C [Member]	Mar. 30, 2013 Gross Receivables [Member] Customer D [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	24.00%	85.00%	18.00%	10.00%	19.00%	41.00%	16.00%	24.00%	16.00%	10.00%

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

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