Fair Value Of Financial Instruments (Outstanding Foreign Exchange Contracts) (Details)	3 Months Ended	12 Months Ended
	Sep. 30, 2015 EUR (€) ZAR / item	Jun. 30, 2015 EUR (€) ZAR / item	Sep. 30, 2015 ZAR / shares	Jun. 30, 2015 ZAR / shares
Foreign Exchange Contract 1 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 526,263.00	€ 526,263.00
Strike price (ZAR) | ZAR / item	15.3809	15.1145
Fair market value price (ZAR)			ZAR 15.5532	ZAR 13.6275
Maturity	Oct. 20, 2015	Jul. 20, 2015
Foreign Exchange Contract 2 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 509,516.00	€ 526,263.00
Strike price (ZAR) | ZAR / item	15.4728	15.2025
Fair market value price (ZAR)			15.6435	13.7062
Maturity	Nov. 20, 2015	Aug. 20, 2015
Foreign Exchange Contract 3 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 529,865.00	€ 526,263.00
Strike price (ZAR) | ZAR / item	15.5654	15.2944
Fair market value price (ZAR)			15.7402	13.7898
Maturity	Dec. 21, 2015	Sep. 21, 2015
Foreign Exchange Contract 4 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 526,663.00	€ 526,263.00
Strike price (ZAR) | ZAR / item	15.6625	15.3809
Fair market value price (ZAR)			ZAR 15.8358	13.8683
Maturity	Jan. 20, 2016	Oct. 20, 2015
Foreign Exchange Contract 5 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €		€ 509,516.00
Strike price (ZAR) | ZAR / item		15.4728
Fair market value price (ZAR)				13.9540
Maturity		Nov. 20, 2015
Foreign Exchange Contract 6 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €		€ 529,865.00
Strike price (ZAR) | ZAR / item		15.5654
Fair market value price (ZAR)				14.0397
Maturity		Dec. 21, 2015
Foreign Exchange Contract 7 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €		€ 526,663.00
Strike price (ZAR) | ZAR / item		15.6625
Fair market value price (ZAR)				ZAR 14.1239
Maturity		Jan. 20, 2016