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Note 10 - Equity Compensation (Tables) | 3 Months Ended
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Sep. 30, 2017
Notes Tables |
Stock Warrants, Valuation Assumptions [Table Text Block] |
|  | Three Months Ended |
|  | September 30 |
|  | 201 7 |
Dividend yield |  |  | 3.4 | %
Expected volatility |  |  | 40.9 | %
Risk-free interest rate |  |  | 1.8 | %
Expected life (years) |  |  | 6.0 |
Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  | Three Months Ended September 30, 201 7 |
|  |  |  |  |  | Weighted |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Average |  |  | Average |  |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Remaining |  |  | Intrinsic |
|  | Shares |  |  | Price |  |  | Contractual Term (years) |  |  | Value |
Outstanding at 6/30/1 7 |  |  | 3,119,688 |  |  | $ | 9.12 |  |  |  | 7.4 |  |  | $ | 2,332,224 |
Granted |  |  | 724,037 |  |  | $ | 5.92 |  |  |  |  |  |  |  |  |
Forfeitures |  |  | (232,171 | ) |  | $ | 13.92 |  |  |  |  |  |  |  |  |
Exercised |  |  | (18,189 | ) |  | $ | 6.31 |  |  |  |  |  |  |  |  |
Outstanding at 9/30/1 7 |  |  | 3,593,365 |  |  | $ | 8.18 |  |  |  | 7.6 |  |  | $ | 646,326 |
Exercisable at 9/30/1 7 |  |  | 1,536,124 |  |  | $ | 8.26 |  |  |  | 5.9 |  |  | $ | 111,768 |
|  | Three Months Ended September 30, 2016 |
|  |  |  |  |  | Weighted |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Average |  |  | Average |  |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Remaining |  |  | Intrinsic |
|  | Shares |  |  | Price |  |  | Contractual Term (years) |  |  | Value |
Outstanding at 6/30/16 |  |  | 2,976,490 |  |  | $ | 8.97 |  |  |  | 6.6 |  |  | $ | 8,338,974 |
Granted |  |  | 832,500 |  |  | $ | 11.06 |  |  |  |  |  |  |  |  |
Forfeitures |  |  | (140,250 | ) |  | $ | 15.95 |  |  |  |  |  |  |  |  |
Exercised |  |  | (20,813 | ) |  | $ | 8.32 |  |  |  |  |  |  |  |  |
Outstanding at 9/30/16 |  |  | 3,647,927 |  |  | $ | 9.18 |  |  |  | 7.3 |  |  | $ | 8,783,980 |
Exercisable at 9/30/16 |  |  | 1,586,188 |  |  | $ | 8.91 |  |  |  | 5.1 |  |  | $ | 4.982,876 |
Schedule of Nonvested Share Activity [Table Text Block] |
|  |  |  |  |  | Weighted-Average |
|  |  |  |  |  | Grant Date |
|  | Shares |  |  | Fair Value |
Unvested at June 30, 2017 |  |  | 1,842,127 |  |  | $ | 3.52 |
Granted |  |  | 724,037 |  |  | $ | 1.71 |
Vested |  |  | (384,602 | ) |  | $ | 3.58 |
Forfeited |  |  | (124,321 | ) |  | $ | 3.49 |
Unvested at September 30, 2017 |  |  | 2,057,241 |  |  | $ | 2.87 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
|  |  |  |  |  | Weighted-Average |
|  |  |  |  |  | Grant Date |
|  | Shares |  |  | Fair Value |
Unvested at June 30, 2017 |  |  | 133,335 |  |  | $ | 10.38 |
Awarded |  |  | 91,490 |  |  | $ | 5.92 |
Shares Issued |  |  | (30,675 | ) |  | $ | 10.30 |
Unvested at September 30, 2017 |  |  | 194,150 |  |  | $ | 8.29 |

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