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Note 5 - Marketable Securities | 3 Months Ended
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Sep. 30, 2013
Disclosure Text Block Supplement [Abstract] |
Cash, Cash Equivalents, and Marketable Securities [Text Block] | (5) Marketable Securities At September 30, 2013 and June 30, 2013, the Company held marketable securities of $13.4 million and $15.5 million respectively, classified as current assets, consisting of U.S. municipal and corporate 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 have been no material realized or unrealized gains or losses for the three months ended September 30, 2013 and September 30, 2012. We do not believe there are any impairments considered to be other than temporary at September 30, 2013. See also Note 12, “Fair Value Measurements"

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