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Note 10 - Equity Compensation - Summary of Unvested Stock Options (Details) - $ / shares | 3 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015
Unvested at June 30, 2016 (in shares) | 1,663,505 |
Unvested at June 30, 2016 (in dollars per share) | $ 3.39 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 832,500 | 942,800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 3.83 | $ 3.65
Vested (in shares) | (408,766) |
Vested (in dollars per share) | $ 3.26 |
Forfeited (in shares) | (25,500) |
Forfeited (in dollars per share) | $ 3.50 |
Unvested at September 30, 2016 (in shares) | 2,061,739 |
Unvested at September 30, 2016 (in dollars per share) | $ 3.59 |

X
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- 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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