DEI Document (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 26, 2014	Jun. 30, 2013
Entity Information [Line Items]
Entity Registrant Name	M I HOMES INC
Entity Central Index Key	0000799292
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		24,437,338
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 314,626,000