Real Estate and Accumulated Depreciation (Details 4) - USD ($)	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Reconciliation of real estate accumulated depreciation
Balance-Beginning of Year	$ 107,004,184	$ 91,095,415	$ 79,345,279	$ 68,166,442
Depreciation	19,705,320	15,908,769	12,864,542	11,471,070
Sales	(1,731,293)	0	(1,114,406)	(272,396)
Balance-End of Year	$ 124,978,211	$ 107,004,184	$ 91,095,415	$ 79,345,279