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Consolidated Statement of Equity [Parenthetical] (USD $) | 12 Months Ended
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Dec. 31, 2011
Issuance Price Of Common Stock Issued In Connection With Exchange For License Option (in dollars per share) | $ 0.04
Issuance Price Of Common Stock Issued During Period New Issues (in dollars) | $ 0.04

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- Definition Issuance value of new stock issued during the period. + References No definition available. + Details
Name: | mhan_IssuancePriceOfCommonStockIssuedDuringPeriodNewIssues
Namespace Prefix: | mhan_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Issuance value of Common Stock Issued In Connection With Exchange For License Option. + References No definition available. + Details
Name: | mhan_IssuancePriceOfCommonStockIssuedInConnectionWithExchangeForLicenseOption
Namespace Prefix: | mhan_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration