PRESENTATION OF INTERIM INFORMATION, Deferred Revenue (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
May 31, 2019
USD ($)
a
May 31, 2018
USD ($)
May 31, 2019
USD ($)
a
Customer
May 31, 2018
USD ($)
Aug. 31, 2018
USD ($)
Oct. 31, 2017
USD ($)
Aug. 31, 2017
USD ($)
Land [Abstract]              
Contract revenues recognized     $ (5,283,091)   $ (2,190,039)    
Deferred revenue $ 1,846,630   1,846,630   477,161   $ 1,055,488
Sky Ranch [Member]              
Land [Abstract]              
Deferred revenue 140,500   $ 140,500        
Proceeds from wholesale water sales $ 1,400,000            
Number of industrial water customers | Customer     1        
Oil and Gas Leases [Member]              
Land [Abstract]              
Mineral estate area owned (in acres) | a 40   40        
Term period of lease     3 years        
Contract revenues recognized $ (13,900) $ (13,900) $ (41,800) $ (37,200)      
Deferred revenue $ 74,311   $ 74,311   $ 116,111 $ 167,200