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Note 5 - Marketable Securities | 9 Months Ended
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Mar. 31, 2015
Notes to Financial Statements |
Cash, Cash Equivalents, and Marketable Securities [Text Block] |
(5) | Marketable Securities
At March 31, 2015 and June 30, 2014, the Company held marketable securities of $6.4 million and $18.2 million respectively, classified as current assets, consisting of U.S. municipal bonds with maturities ranging from less than one year to less than two years, which were rated A+/A2 or better by the rating services Standard & Poors (“S&P”) and Moodys Investors Service (“Moodys”) respectively. There were no material realized or unrealized gains or losses for the three or nine months ended March 31, 2015 and March 31, 2014. We do not believe there are any impairments considered to be other than temporary at March 31, 2015. See also Note 12, “Fair Value Measurements".

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