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Basis of Presentation (Detail Textuals)
Apr. 30, 2017
Feb. 29, 2016
Kingdom Holdings 1 B.V. ("KH1")    
Schedule of Equity Method Investments [Line Items]    
Percentage of ownership interest 19.00% 19.00%
KL North America BV ("KLNA")    
Schedule of Equity Method Investments [Line Items]    
Percent of interest acquired in joint venture 49.00%