Contingencies (Details) - Fishkill, New York Property [Member] - USD ($)
1 Months Ended 9 Months Ended 12 Months Ended
Sep. 14, 2017
Oct. 31, 2017
Apr. 30, 2018
Apr. 30, 2017
Jul. 31, 2016
Damages filed     $ 376,467    
Commitment to replace roof     $ 700,000    
Charge to operations       $ 141,132 $ 279,213
Interest paid $ 48,116        
Amount paid total   $ 189,248