Schedule of Fair Value of Variable Share Forward Contract (Details) (USD $)	3 Months Ended
	Oct. 31, 2013
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 1	$ 538,922
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 2	407,239
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 3	131,683
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 4	1.76
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 5	231,762
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 6	0
Long-term Debt Schedule Of Fair Value Of Variable Share Forward Contract 7	$ 231,762