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Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIENCY)

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIENCY) - USD ($)
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Treasury Stock [Member]
Accumulated Deficit [Member]
Balance at Apr. 30, 2013 $ 594,375 $ 58,573 $ 13,345,888 $ (70,000) $ (12,740,086)
Balance, shares at Apr. 30, 2013   58,573,222      
Issuance of common shares for cash 750,000 $ 3,947 746,053    
Issuance of common shares for cash, shares   3,947,371      
Offering cost for professional services from private placement (48,240)   (48,240)    
Stock-based compensation 608,429   608,429    
Warrants issued in financing $ 483,881   483,881    
Shares issued for price protection   $ 3,271 (3,271)    
Shares issued for price protection, shares   3,270,678      
Conversion of convertible debt into shares          
Shares issued for services rendered $ 216,000 $ 617 215,383    
Shares issued for services rendered, shares   617,143      
Warrant Conversion/Exercised 804,049 $ 7,006 797,043    
Warrant Conversion/Exercised, shares   7,006,064      
Warrant Modification Expense 156,952   $ 156,952    
Net loss (5,350,348)       $ (5,350,348)
Balance at Apr. 30, 2014 (1,784,902) $ 73,414 $ 16,302,118 $ (70,000) $ (18,090,434)
Balance, shares at Apr. 30, 2014   73,414,478      
Issuance of common shares for cash 5,547,826 $ 35,615 5,512,211    
Issuance of common shares for cash, shares   35,614,154      
Offering cost for professional services from private placement (125,579)   (125,579)    
Stock-based compensation $ 456,871   456,871    
Shares issued for price protection   $ 3,532 (3,532)    
Shares issued for price protection, shares   3,532,682      
Conversion of convertible debt into shares $ 100,000 $ 526 99,474    
Conversion of convertible debt into shares, shares   526,316      
Shares issued for services rendered 70,258 $ 419 69,839    
Shares issued for services rendered, shares   418,859      
Warrant Conversion/Exercised 2,268,670 $ 14,748 2,253,922    
Warrant Conversion/Exercised, shares   14,747,116      
Warrant Modification Expense 333,323   $ 333,323    
Net loss (4,268,288)       $ (4,268,288)
Balance at Apr. 30, 2015 $ 2,598,179 $ 128,254 $ 24,898,647 $ (70,000) $ (22,358,722)
Balance, shares at Apr. 30, 2015   128,253,605