Name:	mho_CommitmentFeeIncrease
Namespace Prefix:	mho_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Extending Lenders Credit Facility Expiration Date

No definition available.

Name:	mho_ExtendingLendersCreditFacilityExpirationDate
Namespace Prefix:	mho_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

The amount of letters of credit outstanding under the Company's Credit Facility

No definition available.

Name:	mho_LettersOfCreditOutstandingUnderCreditFacility
Namespace Prefix:	mho_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

Libor Floor

No definition available.

Name:	mho_LiborFloor
Namespace Prefix:	mho_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Libor Increase for third Amendment

No definition available.

Name:	mho_LiborIncreaseForThirdAmendment
Namespace Prefix:	mho_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Non-Extending Lender Commitment

No definition available.

Name:	mho_NonExtendingLenderCommitment
Namespace Prefix:	mho_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Sub-limit for letters of credit

No definition available.

Name:	mho_Sublimitforlettersofcredit
Namespace Prefix:	mho_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Third Amendment to Credit Facility Initiation Date

No definition available.

Name:	mho_ThirdAmendmentToCreditFacilityInitiationDate
Namespace Prefix:	mho_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

Face (par) amount of debt instrument at time of issuance.

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-Name Accounting Standards Codification
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-Section 45
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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Contractual interest rate for funds borrowed, under the debt agreement.

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

Name:	us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Date the credit facility terminates, in CCYY-MM-DD format.

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

No definition available.

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

Name:	us-gaap_LongTermDebtPercentageBearingVariableInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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Period Type:	instant

The lowest amount of net worth (total assets minus total liabilities) required by secondary market investors or state-imposed regulatory mandates.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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