Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details)	3 Months Ended
	Jul. 31, 2012
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 1	299
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 2	0
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 3	0
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 4	299
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 5	0
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 6	0
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 7	(78,757)
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 8	(78,757)
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 9	299
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 10	0
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 11	(78,757)
Summary Of Significant Accounting Principles Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis 12	(78,458)