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SUBSEQUENT EVENTS (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Nov. 06, 2020
USD ($)
$ / shares
shares
Sep. 22, 2020
HKD ($)
Sep. 22, 2020
USD ($)
Nov. 02, 2018
shares
Aug. 21, 2018
shares
Jan. 05, 2015
shares
Jul. 31, 2018
USD ($)
Jul. 31, 2020
Apr. 30, 2020
Apr. 22, 2020
Jul. 31, 2019
USD ($)
Jul. 29, 2019
HKD ($)
Jul. 29, 2019
USD ($)
Apr. 22, 2019
SUBSEQUENT EVENTS                            
Investment in life insurance contract                     $ 1,277,514      
Number of shares issued (in shares) | shares       49,950,000 50,000 50,000,000                
Gross proceeds             $ 755,139              
Subsequent events | Registered direct offering                            
SUBSEQUENT EVENTS                            
Number of shares issued (in shares) | shares 4,347,826                          
Price of shares issued (in dollars per share) | $ / shares $ 0.92                          
Gross proceeds $ 4,000,000                          
Net Proceeds $ 3,500,000                          
Number of shares called by warrants issued (in shares) | shares 4,347,826                          
Exercise price of warrants (in dollars per share) | $ / shares $ 1.10                          
Term of warrants 5 years                          
Period after which the exercise price of warrants may reset to the closing bid price 1 year                          
Manulife (International) Limited ("Manulife")                            
SUBSEQUENT EVENTS                            
Investment in life insurance contract                       $ 10.0 $ 1,290,289  
Manulife (International) Limited ("Manulife") | Subsequent events                            
SUBSEQUENT EVENTS                            
Refund received upon early termination   $ 9.5 $ 1,219,128                      
Early redemption penalty     $ 64,684                      
LGC                            
SUBSEQUENT EVENTS                            
Equity interest acquired (as a percent)               51.20% 51.20% 51.20%       51.20%