Environmental Reserve (Details Textual) (USD $)	9 Months Ended	12 Months Ended
Mar. 31, 2013	Jun. 27, 2010	Jul. 01, 2012
Environmental Reserve (Textual) [Abstract]
Environmental reserve originally established in 1995	$ 3,000,000
Reserve reduced		1,100,000
Accrual for Environmental Loss Contingencies, Ending Balance	1,416,000	1,500,000	1,436,000
Costs incurred to date to install and monitor wells	455,000
Environmental reserve	$ 1,400,000

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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

-Publisher FASB

-Name Accounting Standards Codification

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 5: http://www.xbrl.org/2003/role/presentationRef

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