XML 63 R49.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Income Taxes Net Operating Loss Carryforwards (Details) - State and Local Jurisdiction [Member] $ in Millions | Sep. 30, 2017 USD ($)
--- | ---
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | $ 4.2
Expiring between 2028 and 2032 [Member] |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | 3.0
Expiring between 2022 and 2027 [Member] |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | $ 1.2

X
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
Name: | us-gaap_OperatingLossCarryforwards
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OperatingLossCarryforwardsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mho_NetOperatingLossCarryforwardExpirationDatesAxis=mho_Between2028and2032Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mho_NetOperatingLossCarryforwardExpirationDatesAxis=mho_Betweencurrentyearand2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |