Property and Equipment - at cost (Details) - USD ($)	Oct. 31, 2015	Jul. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment - net	$ 48,605,989	$ 48,191,392
Construction in progress	1,201,288	639,042
Building improvements at 9 Bond Street in Brooklyn, NY [Member]
Property, Plant and Equipment [Line Items]
Construction in progress	144,041	$ 144,041
Building improvements at Fishkill, NY [Member]
Property, Plant and Equipment [Line Items]
Construction in progress	129,665
Building improvements at 25 Elm Place in Brooklyn, NY [Member]
Property, Plant and Equipment [Line Items]
Construction in progress	890,145	$ 495,001
Building improvements at Jamaica, NY [Member]
Property, Plant and Equipment [Line Items]
Construction in progress	37,437
Property [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	85,295,692	$ 84,474,345
Less accumulated depreciation	36,811,125	36,413,975
Property and equipment - net	48,484,567	48,060,370
Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	76,548,587	76,289,486
Improvements to leased property [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	1,478,012	1,478,012
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	6,067,805	6,067,805
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	1,201,288	639,042
Fixtures and equipment and other [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	380,167	380,167
Less accumulated depreciation	258,745	249,145
Property and equipment - net	121,422	131,022
Fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	144,544	144,544
Other fixed assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 235,623	$ 235,623