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Note 10 - Income Taxes (Details Textual) € in Millions | 12 Months Ended
--- | ---
Jun. 30, 2015 EUR (€) | Jun. 30, 2015 USD ($) | Jun. 30, 2014 USD ($) | Jun. 30, 2013 USD ($)
R&D Europe [Member] |  |  |  |
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries | € | € 46.6 |  |  |
Income Tax Expense (Benefit) |  | $ (1,700,000) |  |
Capital Loss Carryforward [Member] |  |  |  |
Deferred Tax Assets, Valuation Allowance |  | 0 |  |
Operating Loss and Credit Carryforwards [Member] |  |  |  |
Deferred Tax Assets, Valuation Allowance |  | 2,400,000 |  |
Operating Loss Carryforwards [Member] |  |  |  |
Deferred Tax Assets, Net of Valuation Allowance |  | 32,600,000 |  |
Tax Credit Carryforwards [Member] |  |  |  |
Deferred Tax Assets, Net of Valuation Allowance |  | 3,500,000 |  |
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |
Operating Loss Carryforwards |  | 86,300,000 |  |
Tax Credit Carryforward, Amount |  | 2,500,000 |  |
State and Local Jurisdiction [Member] |  |  |  |
Operating Loss Carryforwards |  | 77,800,000 |  |
Tax Credit Carryforward, Amount |  | 1,300,000 |  |
Foreign Tax Authority [Member] |  |  |  |
Operating Loss Carryforwards |  | $ 2,500,000 |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 35.00% | 35.00% |  |
Income Tax Expense (Benefit) |  | $ 46,427,000 | $ 50,444,000 | $ 48,101,000
Deferred Tax Assets, Valuation Allowance |  | 2,558,000 | 1,806,000 |
Deferred Tax Assets, Net of Valuation Allowance |  | 57,789,000 | $ 18,853,000 |
Undistributed Earnings of Foreign Subsidiaries |  | $ 43,000,000 |  |

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- Definition This element represents disclosure of the aggregate cash dividends paid to the entity by consolidated subsidiaries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(b)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.9-06) -URI http://asc.fasb.org/extlink&oid=6882215&loc=d3e537971-122884 + Details
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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