Statements of Shareholders Equity (USD $)	Total	Series A Cumulative Redeemable Preferred Stock	Series B Cumulative Redeemable Preferred Stock	Common Stock	Treasury Stock	Additional Paid in Capital	Loans To Officers Directors and Key Employees	Undistributed Income (Loss)	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Sep. 30, 2009	$ 161,497,704	$ 33,062,500	$ 0	$ 257,888	$ (24,905)	$ 125,606,953	$ (1,201,563)	$ 0	$ 3,796,831
Shares Issued in Connection with the DRIP	15,930,405	0	0	22,529	0	15,907,876	0	0	0
Shares issued in connection with registered direct placement, net of offering cost	38,638,937	0	0	57,302	0	38,581,635	0	0	0
Shares Issued Through the Exercise of Stock Options	764,297	0	0	1,163	0	763,134	0	0	0
Shares Issued Through Restricted Stock Awards	0	0	0	679	0	(679)	0	0	0
Stock Based Compensation Expense	33,860	0	0	0	0	33,860	0	0	0
Distributions To Common Shareholders	(18,466,225)	0	0	0	0	(9,979,924)	0	(8,486,301)	0
Purchase of Noncontrolling Interest	(169,786)	0	0	0	0	(169,786)	0	0	0
Net income (loss) applicable to shareholders	8,486,301	0	0	0	0	0	0	8,486,301	0
Unrealized Net Holding gain (loss) on Securities Available for Sale, Net of Reclassification Adjustment	6,319,226	0	0	0	0	0	0	0	6,319,226
Balance at Sep. 30, 2010	213,034,719	33,062,500	0	339,561	(24,905)	170,743,069	(1,201,563)	0	10,116,057
Shares Issued in Connection with the DRIP	19,372,335	0	0	24,787	0	19,347,548	0	0	0
Shares issued in connection with registered direct placement, net of offering cost	18,978,635	20,431,250	0	0	0	(1,452,615)	0	0	0
Shares Issued in Connection with Underwritten Public Offering of Preferred Stock Series B, net of offering costs	0
Shares Issued Through the Exercise of Stock Options	2,181,484	0	0	2,859	0	2,178,625	0	0	0
Shares Issued Through Restricted Stock Awards	0	0	0	754	0	(754)	0	0	0
Cancellation of Shares related to Forfeiture of Restricted Stock Awards	0	0	0	(111)	0	111	0	0	0
Stock Based Compensation Expense	163,150	0	0	0	0	163,150	0	0	0
Distributions To Common Shareholders	(21,161,033)	0	0	0	0	(9,822,054)	0	(11,338,979)	0
Repayment of Loans	118,750	0	0	0	0	0	118,750	0	0
Purchase of Noncontrolling Interest	(1,765,041)	0	0	0	0	(1,765,041)	0	0	0
Net income (loss) applicable to shareholders	11,338,979	0	0	0	0	0	0	11,338,979	0
Unrealized Net Holding gain (loss) on Securities Available for Sale, Net of Reclassification Adjustment	(7,747,894)	0	0	0	0	0	0	0	(7,747,894)
Balance at Sep. 30, 2011	234,514,084	53,493,750	0	367,850	(24,905)	179,392,039	(1,082,813)	0	2,368,163
Shares Issued in Connection with the DRIP	13,094,616	0	0	15,039	0	13,079,577	0	0	0
Shares issued in connection with registered direct placement, net of offering cost	16,189,700	0	0	20,000	0	16,169,700	0	0	0
Shares Issued in Connection with Underwritten Public Offering of Preferred Stock Series B, net of offering costs	55,032,835	0	57,500,000	0	0	(2,467,165)	0	0	0
Shares Issued Through the Exercise of Stock Options	2,558,842	0	0	3,293	0	2,555,549	0	0	0
Shares Issued Through Restricted Stock Awards	0	0	0	678	0	(678)	0	0	0
Distribution of Treasury Stock	(50)	0	0	0	24,905	(24,955)	0	0	0
Cancellation of Shares related to Forfeiture of Restricted Stock Awards	(57)	0	0	(57)	0	0	0	0	0
Shares Issued Through the Conversion of Debentures	150,000	0	0	164	0	149,836	0	0	0
Stock Based Compensation Expense	593,811	0	0	0	0	593,811	0	0	0
Distributions To Common Shareholders	(23,716,598)	0	0	0	0	(10,545,229)	0	(13,171,369)	0
Repayment of Loans	1,082,813	0	0	0	0	0	1,082,813	0	0
Net income (loss) applicable to shareholders	13,171,369	0	0	0	0	0	0	13,171,369	0
Unrealized Net Holding gain (loss) on Securities Available for Sale, Net of Reclassification Adjustment	3,015,774	0	0	0	0	0	0	0	3,015,774
Balance at Sep. 30, 2012	$ 315,687,139	$ 53,493,750	$ 57,500,000	$ 406,967	$ 0	$ 198,902,485	$ 0	$ 0	$ 5,383,937