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Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited)

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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - 3 months ended Jul. 31, 2018 - USD ($)
Common Stock [Member]
Additional Paid-In Capital [Member]
Treasury Stock [Member]
Accumulated Deficit [Member]
Total
Balance at Apr. 30, 2018 $ 18,334 $ 66,557,005 $ (70,000) $ (32,771,748) $ 33,733,591
Balance, shares at Apr. 30, 2018 18,333,521        
Stock-based compensation   209,976 209,976
Common stock issued for cashless stock options exercised $ 5 (5)
Common stock issued for cashless stock options exercised, shares 5,230        
Common stock issued for stock options exercised for cash $ 2 7,815 7,817
Common stock issued for stock options exercised for cash, shares 2,689        
Purchase of treasury stock, net of broker fees (7,370,000) (7,370,000)
Resale of treasury stock, net of broker fees 7,370,000 7,370,000
Fees associated with equity raise   (29,832) (29,832)
Net loss   (2,837,276) (2,837,276)
Balance at Jul. 31, 2018 $ 18,341 $ 66,744,959 $ (70,000) $ (35,609,024) $ 31,084,276
Balance, shares at Jul. 31, 2018 18,341,440