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CASH AND CASH EQUIVALENTS - Market Risks (Details) - Interest rate risk [member] - ZAR (R)
 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Disclosure of risk management strategy related to hedge accounting [line items]    
Market Risk, Increase In 100 Basis Points Effect On Equity And Profit Loss R 1,180,000 R 1,105,000
Market Risk, Decrease In 100 Basis Points Effect On Equity And Profit Loss (1,180,000) (1,105,000)
Cash and Cash Equivalents [Member]    
Disclosure of risk management strategy related to hedge accounting [line items]    
Market Risk, Increase In 100 Basis Points Effect On Equity And Profit Loss 3,021,000 2,537,000
Market Risk, Decrease In 100 Basis Points Effect On Equity And Profit Loss R (3,021,000) R (2,537,000)