EQUITY METHOD INVESTMENTS (Details) (USD $) In Millions, unless otherwise specified	Jun. 24, 2009	Jun. 20, 2008
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Initial Ownership Percentage (in hundredths)		10.00%
Equity Method Investment, Initial Cost		$ 20.2
Equity Method Investment, Ownership Percentage (in hundredths)	25.00%
Equity Method Investment, Additional Investment Cost	$ 15.2
Contingent additional cash payment percentage of net income over threshold (in hundredths)	60.00%

Percentage of the amount of GRI's fiscal year 2011 net income that exceeds a certain threshold that GRI's selling shareholders are entitled to receive.

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Period Type:	instant

- Definition

This element represents the cost of the additional investment in investee accounted for under the equity method of accounting.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

This element represents the cost of the initial investment in investee accounted for under the equity method of accounting.

+ Details

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- Definition

The initial percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ Details

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Namespace Prefix:	jny
Data Type:	num:percentItemType
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Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 18

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 20

-Subparagraph a (1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

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