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Note 10 - Equity Compensation (Tables) | 6 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | December 31 |  |  | December 31 |
|  | 2016 |  |  | 2015 |  |  | 2016 |  |  | 2015 |
Dividend yield |  |  | 2.07 | % |  |  | 1.33 | % |  |  | 1.81 | % |  |  | 1.28 | %
Expected volatility |  |  | 41 | % |  |  | 43 | % |  |  | 43 | % |  |  | 44 | %
Risk-free interest rate |  |  | 2.06 | % |  |  | 1.38 | % |  |  | 1.00 | % |  |  | 1.67 | %
Expected life (in years) |  |  | 6.0 |  |  |  | 6.0 |  |  |  | 6.0 |  |  |  | 6.0 |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  | Six Months Ended December 31, 2016 |
|  |  |  |  |  |  |  |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Weighted |  |  | Average |  |  |  |  |
|  |  |  |  |  | Average |  |  | Remaining |  |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Contractual Term |  |  | Intrinsic |
|  | Shares |  |  | Price |  |  | (in years) |  |  | Value |
Outstanding at 6/30/16 |  |  | 2,976,490 |  |  | $ | 8.97 |  |  |  | 6.6 |  |  | $ | 8,338,974 |
Granted |  |  | 834,320 |  |  | $ | 11.05 |  |  |  |  |  |  |  |  |
Forfeitures |  |  | (147,375 | ) |  | $ | 16.03 |  |  |  |  |  |  |  |  |
Exercised |  |  | (38,063 | ) |  | $ | 7.75 |  |  |  |  |  |  |  |  |
Outstanding at 12/31/16 |  |  | 3,625,372 |  |  | $ | 9.18 |  |  |  | 7.1 |  |  | $ | 4,648,729 |
Exercisable at 12/31/16 |  |  | 1,700,025 |  |  | $ | 8.73 |  |  |  | 5.1 |  |  | $ | 3,216,899 |
|  | Six Months Ended December 31, 2015 |
|  |  |  |  |  |  |  |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Weighted |  |  | Average |  |  |  |  |
|  |  |  |  |  | Average |  |  | Remaining |  |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Contractual Term |  |  | Intrinsic |
|  | Shares |  |  | Price |  |  | (in years) |  |  | Value |
Outstanding at 6/30/15 |  |  | 2,677,436 |  |  | $ | 8.85 |  |  |  | 6.1 |  |  | $ | 4,914,601 |
Granted |  |  | 1,016,800 |  |  | $ | 9.38 |  |  |  |  |  |  |  |  |
Forfeitures |  |  | (55,050 | ) |  | $ | 11.65 |  |  |  |  |  |  |  |  |
Exercised |  |  | (298,724 | ) |  | $ | 7.20 |  |  |  |  |  |  |  |  |
Outstanding at 12/31/15 |  |  | 3,340,462 |  |  | $ | 9.11 |  |  |  | 6.8 |  |  | $ | 12,661,470 |
Exercisable at 12/31/15 |  |  | 1,628,976 |  |  | $ | 9.95 |  |  |  | 4.5 |  |  | $ | 6,032,985 |
Schedule of Nonvested Share Activity [Table Text Block] |
|  |  |  |  |  | Weighted-Average |
|  |  |  |  |  | Grant Date |
|  | Shares |  |  | Fair Value |
Unvested at June 30, 2016 |  |  | 1,663,505 |  |  | $ | 3.39 |
Granted |  |  | 834,320 |  |  | $ | 3.83 |
Vested |  |  | (546,978 | ) |  | $ | 3.25 |
Forfeited |  |  | (25,500 | ) |  | $ | 3.50 |
Unvested at December 31, 2016 |  |  | 1,925,347 |  |  | $ | 3.62 |
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, 2016 |  |  | 62,500 |  |  | $ | 9.39 |
Awarded |  |  | 71,700 |  |  | $ | 11.06 |
Shares Issued |  |  | (15,625 | ) |  | $ | 9.39 |
Unvested at December 31, 2016 |  |  | 118,575 |  |  | $ | 10.40 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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