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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Basis of Presentation (Details) | Aug. 23, 2012
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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |
Number of times that approval of interactive gaming license has been extended | 3
Additional period for which the license was extended | 6 months

X
- Definition Represents the additional period for which the approval was extended. + References No definition available. + Details
Name: | mcri_AdditionalPeriodForWhichApprovalWasExtended
Namespace Prefix: | mcri_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the multiplier of period for which approval is extended. + References No definition available. + Details
Name: | mcri_ApprovalExtensionPeriodMultiplier
Namespace Prefix: | mcri_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration