Income Taxes (Reconciliation Of Income Taxes) (Details)	12 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Income Taxes [Abstract]
Income taxes at fully-distributed South African tax rate	28.00%	34.55%	34.55%
Permanent items	6.60%	6.93%	21.45%
Foreign tax rate differential	7.22%	5.46%	0.24%
Foreign tax credits	(21.12%)	(209.00%)	(82.70%)
Taxation on deemed dividends in United States	31.29%	217.52%	85.60%
Capital gains tax paid	2.43%
Secondary taxation on companies	0.54%
Movement in valuation allowance	1.23%	34.01%	(5.02%)
Prior year adjustments	0.53%	2.61%	(2.37%)
Change in tax law	(30.33%)
Income tax provision	26.39%	92.08%	51.75%

Capital Gains Tax Paid

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- Definition

Combined PercentageTo Measure Income Taxes And Deferred Income Taxes

+ References

No definition available.

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- Definition

Effective Income Tax Rate Reconciliation Permanent Items

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- Definition

Effective Income Tax Rate Reconciliation Secondary Taxation On Companies

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- Definition

Effective Income Tax Rate Reconciliation Taxation On Deemed Dividends In United States

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- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Name Accounting Standards Codification

-Topic 235

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in the valuation allowance for deferred tax assets.

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-Topic 740

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 6.I)

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- Definition

The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit that is attributable to changes in the income tax laws or rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 45

-Subparagraph g

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the difference between statutory income tax rates in foreign jurisdictions and the domestic federal statutory income tax rate recorded during the period.

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- Definition

The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to revisions in previously reported amounts of income tax provision.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by foreign tax credits generated or utilized under enacted tax laws during the period.

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