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MARKETABLE SECURITIES (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 14, 2018
Aug. 31, 2019
Aug. 31, 2018
Statements [Line Items]      
(Gain) Loss on fair value of marketable securities   $ 609 $ (105)
RBPlats [Member]      
Statements [Line Items]      
Number of equity instruments received     4,524,279
Amount received on shares sold $ 7,800    
(Gain) Loss on fair value of marketable securities   $ 609 $ (105)