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Subsequent Event (Details Textual) (Subsequent Event [Member])	3 Months Ended
	Aug. 30, 2012
Subsequent Event [Member]
Joint Venture Ownership Percentage	73.00%

X

- Definition

The percentage of ownership under joint venture.

+ References

No definition available.

+ Details

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