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Commodities Held by Broker (Details Narrative)
6 Months Ended 12 Months Ended
Apr. 30, 2017
USD ($)
Integer
$ / shares
Apr. 30, 2017
GBP (£)
Oct. 31, 2016
GBP (£)
Oct. 31, 2016
Integer
$ / shares
Number of futures contracts | Integer 75     22
Option Contracts [Member]        
Number of futures contracts | Integer 20      
Purchase of futures contracts | $ $ 750,000      
Options fair market value | $ $ 26,700      
Pounds [Member]        
Purchase of futures contracts | £   £ 2,812,500 £ 825,000  
Futures contractes weighted average price | $ / shares $ 1.43     $ 1.45
Fair market value of futures contract | $ / shares $ 1.33     $ 1.64
Minimum [Member]        
Futures contracts term 3 months 3 months 3 months  
Maximum [Member]        
Futures contracts term 4 months 4 months 4 months