Schedule of Fair Value of Variable Share Forward Contract (Details) (USD $)	6 Months Ended
	Jan. 31, 2014
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 1	$ 407,239
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 2	0
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 3	562,500
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 4	155,261
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 5	1.73
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 6	$ 268,601