Income Taxes	6 Months Ended
Dec. 31, 2011
Income Taxes [Abstract]
Income Taxes	4. Income Taxes Deferred income taxes are recognized based on temporary differences between the financial statement and tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using the statutory tax rates and laws expected to apply to taxable income in the years in which the temporary differences are expected to reverse. Valuation allowances are provided against net deferred tax assets if, based upon the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the future generation of taxable income, the ability to utilize tax credits, and the timing of the temporary differences becoming deductible. Management considers, among other available information, scheduled reversals of deferred tax liabilities, projected future taxable income, limitations of availability of net operating loss carry-forwards, and other matters in making this assessment. Based on our evaluation of the realizability of our deferred tax assets in future years, a significant portion of the U.S. valuation allowance was reversed during the year ended June 30, 2011 due to our projection of future taxable income. A valuation allowance has been retained in the U.S. for certain R&D credits that are anticipated to expire unused and for a deferred tax asset on unrealized capital losses. A valuation allowance has also been retained on certain foreign subsidiary net operating loss (“NOL”) carryforwards because it is more likely than not that a benefit will not be realized. At December 31, 2011 and June 30, 2011, our total valuation allowance was $8.7 million and $8.0 million, respectively. We do not provide deferred taxes on unremitted earnings of foreign subsidiaries since we intend to indefinitely reinvest such earnings either currently or sometime in the foreseeable future. The unrecognized provision for taxes on undistributed earnings of foreign subsidiaries which are considered indefinitely reinvested are not material to our consolidated financial position or results of operations. We are subject to examination by the IRS, as well as various state and foreign jurisdictions. The IRS and other taxing authorities may challenge certain deductions and credits reported by us on our income tax returns. We account for uncertain tax positions pursuant to FIN 48, Accounting for Uncertain Tax Positions, (currently included as provisions of ASC Topic 740, Income Taxes), which clarifies the criteria for recognition and measurement of benefits from uncertain tax positions. Under this guidance, an entity should recognize a tax benefit when it is more likely than not, based on the technical merits, that the position would be sustained upon examination by a taxing authority. The amount to be recognized, if the more-likely-than-not threshold is passed, should be measured as the largest amount of tax benefit that is more than 50 percent likely to be realized upon the ultimate settlement with a taxing authority that has full knowledge of all relevant information. Furthermore, any change in the recognition, de-recognition or measurement of a tax position should be recorded in the period in which the change occurs. We account for interest and penalties related to uncertain tax positions as part of the provision for income taxes.

4. Income Taxes

Deferred income taxes are recognized based on temporary differences between the financial statement and tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using the statutory tax rates and laws expected to apply to taxable income in the years in which the temporary differences are expected to reverse.

Valuation allowances are provided against net deferred tax assets if, based upon the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the future generation of taxable income, the ability to utilize tax credits, and the timing of the temporary differences becoming deductible. Management considers, among other available information, scheduled reversals of deferred tax liabilities, projected future taxable income, limitations of availability of net operating loss carry-forwards, and other matters in making this assessment.

Based on our evaluation of the realizability of our deferred tax assets in future years, a significant portion of the U.S. valuation allowance was reversed during the year ended June 30, 2011 due to our projection of future taxable income. A valuation allowance has been retained in the U.S. for certain R&D credits that are anticipated to expire unused and for a deferred tax asset on unrealized capital losses. A valuation allowance has also been retained on certain foreign subsidiary net operating loss (“NOL”) carryforwards because it is more likely than not that a benefit will not be realized. At December 31, 2011 and June 30, 2011, our total valuation allowance was $8.7 million and $8.0 million, respectively.

We do not provide deferred taxes on unremitted earnings of foreign subsidiaries since we intend to indefinitely reinvest such earnings either currently or sometime in the foreseeable future. The unrecognized provision for taxes on undistributed earnings of foreign subsidiaries which are considered indefinitely reinvested are not material to our consolidated financial position or results of operations.

We are subject to examination by the IRS, as well as various state and foreign jurisdictions. The IRS and other taxing authorities may challenge certain deductions and credits reported by us on our income tax returns. We account for uncertain tax positions pursuant to FIN 48, Accounting for Uncertain Tax Positions, (currently included as provisions of ASC Topic 740, Income Taxes), which clarifies the criteria for recognition and measurement of benefits from uncertain tax positions. Under this guidance, an entity should recognize a tax benefit when it is more likely than not, based on the technical merits, that the position would be sustained upon examination by a taxing authority. The amount to be recognized, if the more-likely-than-not threshold is passed, should be measured as the largest amount of tax benefit that is more than 50 percent likely to be realized upon the ultimate settlement with a taxing authority that has full knowledge of all relevant information. Furthermore, any change in the recognition, de-recognition or measurement of a tax position should be recorded in the period in which the change occurs. We account for interest and penalties related to uncertain tax positions as part of the provision for income taxes.