Fair Value Of Financial Instruments (Outstanding Foreign Exchange Contracts) (Details)	12 Months Ended
	Jun. 30, 2016 EUR (€) ZAR / item	Jun. 30, 2015 EUR (€) ZAR / item	Jun. 30, 2016 ZAR / shares	Jun. 30, 2015 ZAR / shares
Foreign Exchange Contract 1 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 573,765.00	€ 526,263.00
Strike price | ZAR / item	15.9587	15.1145
Fair market value price | ZAR / shares			ZAR 16.3393	ZAR 13.6275
Maturity	Jul. 20, 2016	Jul. 20, 2015
Foreign Exchange Contract 2 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 554,494.50	€ 526,263.00
Strike price | ZAR / item	16.0643	15.2025
Fair market value price | ZAR / shares			16.4564	13.7062
Maturity	Aug. 19, 2016	Aug. 20, 2015
Foreign Exchange Contract 3 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 465,711.00	€ 526,263.00
Strike price | ZAR / item	16.1798	15.2944
Fair market value price | ZAR / shares			16.5820	13.7898
Maturity	Sep. 20, 2016	Sep. 21, 2015
Foreign Exchange Contract 4 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 393,675.00	€ 526,263.00
Strike price | ZAR / item	16.2911	15.3809
Fair market value price | ZAR / shares			16.7017	13.8683
Maturity	Oct. 20, 2016	Oct. 20, 2015
Foreign Exchange Contract 5 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €	€ 302,368.50	€ 509,516.00
Strike price | ZAR / item	16.4085	15.4728
Fair market value price | ZAR / shares			ZAR 16.8301	13.9540
Maturity	Nov. 21, 2016	Nov. 20, 2015
Foreign Exchange Contract 6 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €		€ 529,865.00
Strike price | ZAR / item		15.5654
Fair market value price | ZAR / shares				14.0397
Maturity		Dec. 21, 2015
Foreign Exchange Contract 7 [Member]
Derivatives, Fair Value [Line Items]
Notional amount | €		€ 526,663.00
Strike price | ZAR / item		15.6625
Fair market value price | ZAR / shares				ZAR 14.1239
Maturity		Jan. 20, 2016