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Subsequent Events Subsequent Events (Details) (USD $) In Thousands, unless otherwise specified | 2 Months Ended
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Feb. 28, 2014
Subsequent Event [Abstract] |
Subsequent Event, Effect of Change in Tax Status | $ 3,000

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- Details
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Namespace Prefix: | mho_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Monetary effect of a change in the tax status effective after year-end but before the financial statements for the reporting period are issued or available to be issue by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32590-109319 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | debit
Period Type: | duration