Quarterly report pursuant to Section 13 or 15(d)

SEGMENT INFORMATION (Details) - Segments Information

v3.20.1
SEGMENT INFORMATION (Details) - Segments Information - USD ($)
 3 Months Ended 6 Months Ended
Apr. 30, 2020
Apr. 30, 2019
Apr. 30, 2020
Apr. 30, 2019
Oct. 31, 2019
Net loss:          
Net Loss $ (2,657,990) $ (2,574,934) $ (5,274,565) $ (7,541,543)  
Total operating costs and expenses 2,670,137 2,843,234 5,300,006 7,826,962  
Less non-cash share-based compensation (1,110,086) (1,321,450) (2,131,420) (4,071,614)  
Operating costs and expenses excluding non-cash share-based compensation 1,560,051 1,521,784 3,168,586 3,755,348  
Total assets:          
Total Assets 5,924,895   5,924,895   $ 6,293,693
CAR-T Therapeutics [Member] | Operating Segments [Member]          
Net loss:          
Net Loss (495,030) (1,029,934) (1,125,363) (3,517,219)  
Operating costs and expenses excluding non-cash share-based compensation 223,822 444,890 570,163 1,245,681  
Total assets:          
Total Assets 1,011,316   1,011,316   2,382,460
Cancer Vaccines [Member] | Operating Segments [Member]          
Net loss:          
Net Loss (170,271) (365,867)  
Operating costs and expenses excluding non-cash share-based compensation 67,059 165,329  
Total assets:          
Total Assets 287,831   287,831   489,881
Anti-Viral Therapeutics [Member] | Operating Segments [Member]          
Net loss:          
Net Loss (309,504) (309,504)  
Operating costs and expenses excluding non-cash share-based compensation 221,018 221,018  
Total assets:          
Total Assets 384,326   384,326  
Cancer Diagnostics [Member] | Operating Segments [Member]          
Net loss:          
Net Loss (1,679,027) (1,249,001) (3,469,673) (3,052,355)  
Operating costs and expenses excluding non-cash share-based compensation 1,044,889 658,433 2,208,813 1,417,967  
Total assets:          
Total Assets 4,089,496   4,089,496   2,921,784
Patent Licensing [Member] | Operating Segments [Member]          
Net loss:          
Net Loss (4,158) (296,999) (4,158) (971,969)  
Operating costs and expenses excluding non-cash share-based compensation 3,263 $ 418,461 3,263 $ 1,091,700  
Total assets:          
Total Assets $ 151,926   $ 151,926   $ 499,568