Debt MIF Warehousing Agreement (Details) (USD $)			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Warehousing Agreement - Amended and Restated [Member]	Dec. 31, 2013 Repurchase Agreement [Member]	Dec. 31, 2013 Minimum [Member] Repurchase Agreement [Member]	Dec. 31, 2013 Maximum [Member] Repurchase Agreement [Member]
Line of Credit Facility [Line Items]
LIBOR basis points			275		275	300
Debt Instrument, Basis Spread on Variable Rate			3.50%
M/I Financial Maximum Borrowing Capacity			$ 100,000,000	$ 15,000,000
Maximum Borrowing Availability under all Credit Lines	115,000,000	85,000,000
Notes payable - financial services operations	$ 80,029,000	$ 67,957,000