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Acquisition (Details Textual) (USD $)	6 Months Ended
	Nov. 29, 2012
Non-Recourse Debt	$ 25,744,000
Ownership Percentage In Joint Ventures	73.00%
Corporate Joint Venture [Member]
Noncontrolling Interest in Joint Ventures	$ 4,000,000

X

- Definition

Percentage of ownership in joint venture during the period.

+ References

No definition available.

+ Details

Name:	mcs_OwnershipPercentageInJointVentures
Namespace Prefix:	mcs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying amount of the equity interests owned by noncontrolling shareholders, partners, or other equity holders in joint ventures included in the entity's consolidated financial statements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568740-111683

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of debt for which creditor does not have general recourse to the debtor but rather has recourse only to the property used for collateral in the transaction or other specific property.

+ References

No definition available.

+ Details

Name:	us-gaap_NonRecourseDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant