Quarterly report pursuant to Section 13 or 15(d)

8. RELATED PARTY TRANSACTIONS (Details Narrative)

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8. RELATED PARTY TRANSACTIONS (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Oct. 31, 2015
Oct. 31, 2014
Oct. 31, 2015
Oct. 31, 2014
SG Austria [Member]        
Equity investment percentage 14.50%   14.50%  
SG Austria [Member]        
Purchases from related parties $ 155,000 $ 6,000 $ 203,000  
Austrianova        
Purchases from related parties     6,000  
Payments made for licensing agreement     1,400,000  
Vin-de-Bona        
Professional fees included in research and development $ 11,000 $ 6,000 $ 19,000 $ 9,000