Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

v3.10.0.1
Related Party Transactions - Additional Information (Detail) - USD ($)
 6 Months Ended
Nov. 16, 2018
Nov. 08, 2017
Jul. 28, 2017
Jul. 26, 2017
Nov. 30, 2018
Jul. 10, 2018
May 31, 2018
Related Party Transaction [Line Items]              
Common stock, outstanding         290,649,949   216,722,779
Private Equity Offering              
Related Party Transaction [Line Items]              
Proceeds from private equity offering         $ 22,500,000    
Warrants to purchase common shares, shares         22,478,585    
Exercise price of warrants, per share         $ 0.75    
Chief Science Officer              
Related Party Transaction [Line Items]              
Stock options vested           500,000  
Managing Director              
Related Party Transaction [Line Items]              
Stock options vested           100,000  
Dr Richard G Pestell | ProstaGene, LLC              
Related Party Transaction [Line Items]              
Percentage of outstanding equity interest 77.20%            
Common stock held for future issuance 8,611,427            
Common stock, outstanding 13,258,000            
Dr Richard G Pestell | ProstaGene, LLC | Stock Restriction Agreement              
Related Party Transaction [Line Items]              
Common stock held for future issuance 8,342,000            
Common stock shares restriction period 3 years            
Dr Richard G Pestell | ProstaGene, LLC | Escrow Account Deposit              
Related Party Transaction [Line Items]              
Common stock held for future issuance 4,171,013            
Common stock, outstanding 5,400,000            
Jordan G. Naydenov | Private Equity Offering              
Related Party Transaction [Line Items]              
Warrants to purchase common shares, shares       66,666      
Exercise price of warrants, per share       $ 1.00      
Jordan G. Naydenov | Short Term Convertible Promissory Notes | Private Equity Offering              
Related Party Transaction [Line Items]              
Purchased short term convertible promissory note interest       7.00%      
Proceeds from private equity offering       $ 100,000      
Alpha Venture Capital Partners, L.P.              
Related Party Transaction [Line Items]              
Warrants to purchase common shares, shares     33,333        
Exercise price of warrants, per share     $ 1.00        
Alpha Venture Capital Partners, L.P. | Short Term Convertible Promissory Notes              
Related Party Transaction [Line Items]              
Purchased short term convertible promissory note interest     7.00%        
Proceeds from private equity offering     $ 50,000        
Anthony D Caracciolo | Private Equity Offering              
Related Party Transaction [Line Items]              
Stock and warrants issued during period value common stock and warrants   $ 100,000