Quarterly report pursuant to Section 13 or 15(d)

2. SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)

v3.20.2
2. SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)
3 Months Ended
Aug. 12, 2020
Jul. 31, 2020
Jul. 31, 2019
Apr. 30, 2020
Intangible assets   $ 3,549,427   $ 3,549,427
Impairment of intangible assets   0 $ 0  
Research and development costs   270,574 72,330  
Uninsured cash balances   1,887,000   618,000
Accumulated deficit   (104,742,203)   $ (103,858,259)
Net loss   (883,944) $ (1,134,075)  
Block Trade [Member]        
Proceeds from the sale of equity   1,900,000    
Block Trade [Member] | Subsequent Event [Member]        
Proceeds from the sale of equity $ 2,800,000      
Cell-in-a-Box [Member]        
Intangible assets   1,549,427    
Diabetes License [Member]        
Intangible assets   $ 2,000,000    
SG Austria [Member]        
Percentage investment in SG Austria   14.50%