CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)	Common Stock	Preferred Stock	Treasury Stock	Additional Paid-In Capital	Loans To Directors and Key Employees	Undistributed Income (Loss)	Accumulated Other Comprehensive Income (Loss)	Total MREIC's Shareholders' Equity	Noncontrolling Interest	Total
Balance at Sep. 30, 2008	$ 245,671	$ 33,062,500	$ 0	$ 133,943,807	$ (1,201,563)	$ 0	$ (6,139,451)	$ 159,910,964	$ 3,619,156	$ 163,530,120
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares Issued in Connection with the DRIP	12,217	0	0	7,438,287	0	0	0	7,450,504	0	7,450,504
Purchase of Treasury Stock	0	0	(24,905)	0	0	0	0	(24,905)	0	(24,905)
Stock Based Compensation Expense	0	0	0	77,351	0	0	0	77,351	0	77,351
Distributions	0	0	0	(15,852,492)	0	868,313	0	(14,984,179)	0	(14,984,179)
Distributions to Noncontrolling Interest	0	0	0	0	0	0	0	0	(379,693)	(379,693)
Net Income Attributable to MREIC's Common Shareholders	0	0	0	0	0	(868,313)	0	(868,313)	0	(868,313)
Net Income Attributable to Noncontrolling Interest	0	0	0	0	0	0	0	0	153,983	153,983
Unrealized Net Holding Gain (Loss) on Securities Available for Sale, Net of Reclassification Adjustment	0	0	0	0	0	0	9,936,282	9,936,282	0	9,936,282
Balance at Sep. 30, 2009	257,888	33,062,500	(24,905)	125,606,953	(1,201,563)	0	3,796,831	161,497,704	3,393,446	164,891,150
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares Issued in Connection with the DRIP	22,529	0	0	15,907,876	0	0	0	15,930,405	0	15,930,405
Shares Issued in Connection with Registered Direct Placements, net of offering costs	57,302	0	0	38,581,635	0	0	0	38,638,937	0	38,638,937
Shares Issued Through the Exercise of Stock Options	1,163	0	0	763,134	0	0	0	764,297	0	764,297
Shares Issued Through Restricted Stock Awards	679	0	0	(679)	0	0	0	0	0	0
Stock Based Compensation Expense	0	0	0	33,860	0	0	0	33,860	0	33,860
Purchase of Noncontrolling Interest	0	0	0	(169,786)	0	0	0	(169,786)	(779,016)	(948,802)
Distributions	0	0	0	(9,979,924)	0	(8,486,301)	0	(18,466,225)	0	(18,466,225)
Distributions to Noncontrolling Interest	0	0	0	0	0	0	0	0	(344,414)	(344,414)
Net Income Attributable to MREIC's Common Shareholders	0	0	0	0	0	8,486,301	0	8,486,301	0	8,486,301
Net Income Attributable to Noncontrolling Interest	0	0	0	0	0	0	0	0	207,737	207,737
Unrealized Net Holding Gain (Loss) on Securities Available for Sale, Net of Reclassification Adjustment	0	0	0	0	0	0	6,319,226	6,319,226	0	6,319,226
Balance at Sep. 30, 2010	339,561	33,062,500	(24,905)	170,743,069	(1,201,563)	0	10,116,057	213,034,719	2,477,753	215,512,472
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares Issued in Connection with the DRIP	24,787	0	0	19,347,548	0	0	0	19,372,335	0	19,372,335
Shares Issued in Connection with Registered Direct Placements, net of offering costs	0	20,431,250	0	(1,452,615)	0	0	0	18,978,635	0	18,978,635
Shares Issued Through the Exercise of Stock Options	2,859	0	0	2,178,625	0	0	0	2,181,484	0	2,181,484
Shares Issued Through Restricted Stock Awards	754	0	0	(754)	0	0	0	0	0	0
Cancellation of Shares related to Forfeiture of Restricted Stock Awards	(111)	0	0	111	0	0	0	0	0	0
Stock Based Compensation Expense	0	0	0	163,150	0	0	0	163,150	0	163,150
Purchase of Noncontrolling Interest	0	0	0	(1,765,041)	0	0	0	(1,765,041)	(2,373,250)	(4,138,291)
Distributions	0	0	0	(9,822,054)	0	(11,338,979)	0	(21,161,033)	0	(21,161,033)
Distributions to Noncontrolling Interest	0	0	0	0	0	0	0	0	(160,868)	(160,868)
Repayment of Loans	0	0	0	0	118,750	0	0	118,750	0	118,750
Net Income Attributable to MREIC's Common Shareholders	0	0	0	0	0	11,338,979	0	11,338,979	0	11,338,979
Net Income Attributable to Noncontrolling Interest	0	0	0	0	0	0	0	0	84,953	84,953
Unrealized Net Holding Gain (Loss) on Securities Available for Sale, Net of Reclassification Adjustment	0	0	0	0	0	0	(7,747,894)	(7,747,894)	0	(7,747,894)
Balance at Sep. 30, 2011	$ 367,850	$ 53,493,750	$ (24,905)	$ 179,392,039	$ (1,082,813)	$ 0	$ 2,368,163	$ 234,514,084	$ 28,588	$ 234,542,672