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Secured Convertible Note (Narrative) (Details) (USD $)	9 Months Ended			12 Months Ended		3 Months Ended	9 Months Ended
Secured Convertible Note (Narrative) (Details) (USD $)	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013 Notes Payable, Other Payables [Member]	Jul. 31, 2012 Convertible Debt [Member]	Jul. 10, 2012 Convertible Debt [Member] loan	Oct. 31, 2012 Bridge Loan [Member]	Apr. 30, 2013 Bridge Loan [Member]
Debt Instrument [Line Items]
Cash proceeds from convertible debt issued				$ 1,200,000
Number of lenders					9
Convertible debt principal			1,125,000		1,333,000
Convertible debt interest expense							371,000
Amortization of stock issued with bridge loan	$ 215,000	$ 0				$ 215,000

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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