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Note 9 - Equity Compensation - Summary of Unvested Stock Options (Details) - $ / shares | 12 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015
Unvested (in shares) | 1,663,505 |  |
Unvested (in dollars per share) | $ 3.39 |  |
Granted (in shares) | 1,332,623 | 1,026,800 | 734,323
Granted (in dollars per share) | $ 3.67 | $ 3.64 | $ 3.27
Vested (in shares) | (696,501) |  |
Vested (in dollars per share) | $ 3.30 |  |
Forfeited (in shares) | (457,500) |  |
Forfeited (in dollars per share) | $ 3.81 |  |
Unvested (in shares) | 1,842,127 | 1,663,505 |
Unvested (in dollars per share) | $ 3.52 | $ 3.39 |

X
- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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X
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Number of non-vested options outstanding. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of non-vested options forfeited. + References No definition available. + Details
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