Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements.

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- Definition

Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of after one year or beyond the normal operating cycle, if longer, net of the effects of master netting arrangements.

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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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+ Details

DERIVATIVE LIABILITIES (Details Textual) (USD $)			3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended
DERIVATIVE LIABILITIES (Details Textual) (USD $)	Jan. 31, 2013	Apr. 30, 2012	Jan. 31, 2013 Common Stock Warrant [Member]	Jan. 31, 2013 Common Stock Warrant [Member]	Jan. 31, 2013 Common Stock Warrant [Member] Maximum [Member]	Jan. 31, 2013 Common Stock Warrant [Member] Minimum [Member]	Jan. 31, 2013 Senior Secured Convertible Notes [Member]	Jan. 31, 2013 Senior Secured Convertible Notes [Member]	Jan. 31, 2013 Senior Secured Convertible Notes [Member] Maximum [Member]	Jan. 31, 2013 Senior Secured Convertible Notes [Member] Minimum [Member]
Debt Instrument, Convertible, Conversion Price	$ 0.3078		$ 0.471	$ 0.471					$ 0.57	$ 0.3768
Fair Value Assumptions, Risk Free Interest Rate				0.63%				0.25%
Fair Value Assumptions, Expected Term				5 years				1 year 6 months
Fair Value Assumptions, Expected Dividend Rate				0.00%				0.00%
Fair Value Assumptions, Expected Volatility Rate					68.00%	64.00%			84.00%	79.00%
Share Price			$ 0.45	$ 0.45			$ 0.45	$ 0.45
Derivative liability - Notes	$ 3,001,306	$ 0
Derivative liability - warrants	1,945,284	0
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net			$ 317,129	$ 317,129			$ 385,445	$ 385,445