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Note 1 - Description of Business and Summary of Significant Accounting Policies (Details Textual) - USD ($) | 12 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2014
Equipment [Member] |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |
Building, Building Improvements and Leasehold Improvements [Member] | Minimum [Member] |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |
Building, Building Improvements and Leasehold Improvements [Member] | Maximum [Member] |  |  |
Property, Plant and Equipment, Useful Life | 40 years |  |
Goodwill, Impairment Loss | $ 0 |  |
Impairment of Intangible Assets (Excluding Goodwill) | 0 |  |
Advertising Expense | $ 5,200,000 | $ 4,100,000 | $ 3,400,000
Available-for-Sale Securities, Debt Maturities, Date Range Low | 90 days |  |
Available-for-sale Securities, Debt Maturities, Date Range High | 3 years |  |
Goodwill | $ 430,882,000 | $ 390,638,000 | $ 151,473,000

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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