Property and Equipment - at cost (Details) (USD $)	Jan. 31, 2013	Jul. 31, 2012
Property:
Property - net	$ 43,668,052	$ 44,259,379
Land and Building [Member]
Property:
Buildings and improvements	67,993,772	68,160,718
Improvements to leased property	1,478,012	1,478,012
Land	6,067,805	6,067,805
Construction in progress	288,667	72,467
Property - gross	75,828,256	75,779,002
Less accumulated depreciation	32,278,902	31,620,831
Property - net	43,549,354	44,158,171
Property, Plant and Equipment, Other Types [Member]
Property:
Property - gross	408,087	387,072
Less accumulated depreciation	289,389	285,864
Property - net	118,698	101,208
Fixtures and equipment and other:
Fixtures and equipment	167,687	167,687
Other fixed assets	$ 240,400	$ 219,385