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Subsequent Event (Details Textual) (Subsequent Event [Member], USD $) | 1 Months Ended
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Jun. 27, 2013
Subsequent Event [Member] |
Senior notes issuable aggregate principal amount | $ 50,000,000
Percentage of notes issuabe in senior notes | 4.02%
Senior notes issuable expiration date | Aug. 14, 2013

X
- Definition Represents the percentage of notes issuable in senior notes. + References No definition available. + Details
Name: | mcs_PercentageOfNotesIssuabeInSeniorNotes
Namespace Prefix: | mcs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the aggregate principal amount of senior notes issuable. + References No definition available. + Details
Name: | mcs_SeniorNotesIssuableAggregatePrincipalAmount
Namespace Prefix: | mcs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Date the senior notes issuable and sale terminates, in CCYY-MM-DD format. + References No definition available. + Details
Name: | mcs_SeniorNotesIssuableExpirationDate
Namespace Prefix: | mcs_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | instant