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PREFERRED STOCK, COMMON STOCK AND EQUITY TRANSACTIONS (Details)
3 Months Ended
Jul. 31, 2012
Warrant [Member]
 
Expected volatility 68.96%
Expected dividends 0.00%
Expected term (in years) 7 months 24 days
Risk-free rate 0.30%
Common Stock and Equity [Member]
 
Expected volatility 175.80%
Expected dividends 0.00%
Expected term (in years) 3 years
Risk-free rate 1.375%