Annual report pursuant to Section 13 and 15(d)

2. SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)

v3.20.2
2. SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)
3 Months Ended 12 Months Ended
Aug. 10, 2020
Apr. 30, 2020
Apr. 30, 2019
Aug. 14, 2020
Apr. 30, 2018
Intangible assets   $ 3,549,427 $ 3,549,427    
Impairment of intangible assets   0 0    
Research and development costs   301,221 460,052    
Uninsured cash balances   618,000 127,000    
Accumulated deficit   (103,858,259) (100,031,371)    
Net loss   (3,826,888) (4,067,228)    
Cash in bank   894,861 $ 515,253   $ 1,059,798
Subsequent Event [Member]          
Cash in bank       $ 4,900,000  
Block Trade [Member]          
Proceeds from the sale of equity   2,150,000      
Private Placement [Member]          
Proceeds from the sale of equity   500,000      
Block Trade [Member] | Subsequent Event [Member]          
Proceeds from the sale of equity $ 4,700,000        
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%