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Note 10 - Summary of Unvested Stock Options (Details) - $ / shares | 9 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Non-vested at (in shares) | 1,080,198 |
Non-vested at (in dollars per share) | $ 2.99 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 1,026,800 | 713,323
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 3.64 | $ 3.26
Vested (in shares) | (390,443) |
Vested (in dollars per share) | $ 2.94 |
Forfeited (in shares) | (35,800) |
Forfeited (in dollars per share) | $ 3.31 |
Non-vested at (in shares) | 1,680,755 |
Non-vested at (in dollars per share) | $ 3.39 |

X
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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=6415400&loc=d3e5070-113901 + Details
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