Consolidated Balance Sheets (Parenthetical) - USD ($)	Mar. 31, 2016	Sep. 30, 2015
Accumulated amortization of financing costs	$ 3,720,052	$ 3,247,014
Accumulated amortization of lease costs	2,915,276	2,534,521
Accumulated amortization of intangible assets	$ 11,797,054	$ 11,153,855
Common stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	200,000,000	200,000,000
Common Stock, shares issued	65,588,024	62,123,454
Common Stock, shares outstanding	65,588,024	62,123,454
Excess Stock, par value	$ 0.01	$ 0.01
Excess Stock , shares authorized	200,000,000	200,000,000
Excess Stock , shares issued
Excess Stock , shares outstanding
Series A Preferred Stock [Member]
Cumulative redeemable preferred, stock dividend rate	7.625%	7.625%
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,139,750	2,139,750
Preferred stock, shares issued	2,139,750	2,139,750
Preferred stock, shares outstanding	2,139,750	2,139,750
Series B Preferred Stock [Member]
Cumulative redeemable preferred, stock dividend rate	7.875%	7.875%
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,300,000	2,300,000
Preferred stock, shares issued	2,300,000	2,300,000
Preferred stock, shares outstanding	2,300,000	2,300,000