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Fiscal Year (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2013 | Sep. 01, 2012 | May 31, 2014 | Jun. 01, 2013
Fiscal Year [Abstract] |  |  |  |
Fiscal Period, Weeks | 13 weeks | 13 weeks | 52 weeks | 52 weeks

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- Definition Fiscal Period, Weeks + References No definition available. + Details
Name: | mlhr_FiscalPeriodWeeks
Namespace Prefix: | mlhr_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | mlhr_FiscalYearAbstract
Namespace Prefix: | mlhr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration