Fair Value Of Financial Instruments (Outstanding Foreign Exchange Contracts) (Details)	3 Months Ended	12 Months Ended
	Sep. 30, 2016 EUR (€) ZAR / item	Jun. 30, 2016 EUR (€) ZAR / item	Sep. 30, 2016 ZAR / shares	Jun. 30, 2016 ZAR / shares
Foreign Exchange Contract 1 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 393,675.00	€ 573,765.00
Strike price | ZAR / item	16.2911	15.9587
Fair market value price | ZAR / shares			ZAR 15.5206	ZAR 16.3393
Maturity	Oct. 20, 2016	Jul. 20, 2016
Foreign Exchange Contract 2 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 302,368.50	€ 554,494.50
Strike price | ZAR / item	16.4085	16.0643
Fair market value price | ZAR / shares			ZAR 15.6389	16.4564
Maturity	Nov. 21, 2016	Aug. 19, 2016
Foreign Exchange Contract 3 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €		€ 465,711.00
Strike price | ZAR / item		16.1798
Fair market value price | ZAR / shares				16.5820
Maturity		Sep. 20, 2016
Foreign Exchange Contract 4 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €		€ 393,675.00
Strike price | ZAR / item		16.2911
Fair market value price | ZAR / shares				16.7017
Maturity		Oct. 20, 2016
Foreign Exchange Contract 5 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €		€ 302,368.50
Strike price | ZAR / item		16.4085
Fair market value price | ZAR / shares				ZAR 16.8301
Maturity		Nov. 21, 2016