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Stock Based Compensation (Tables) | 9 Months Ended
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Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | A summary of option plan activity under the plan is as follows:
| Number of Shares |  | Weighted Average Exercise Price |  | Aggregate Intrinsic Value
Outstanding July 1, 2014 | 125 |  |  | $ | 22.29 |  |  |
Granted | — |  |  | — |  |  |
Forfeited | — |  |  | — |  |  |
Exercised | (15 | ) |  | 19.65 |  |  |
Outstanding March 31, 2015 | 110 |  |  | $ | 22.65 |  |  | $ | 5,197 |
Vested March 31, 2015 | 110 |  |  | $ | 22.65 |  |  | $ | 5,197 |
Exercisable March 31, 2015 | 110 |  |  | $ | 22.65 |  |  | $ | 5,197 |
Schedule of Nonvested Restricted Stock Activity [Table Text Block] | The following table summarizes non-vested share awards as of March 31, 2015, as well as activity for the nine months then ended:
Share awards | Shares |  | Weighted Average Grant Date Fair Value
Outstanding July 1, 2014 | 138 |  |  | $ | 33.56 |
Granted | 9 |  |  | 56.06 |
Vested | (70 | ) |  | 35.80 |
Forfeited | (7 | ) |  | 46.39 |
Outstanding March 31, 2015 | 70 |  |  | $ | 32.95 |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] | The following table summarizes non-vested unit awards as of March 31, 2015, as well as activity for the nine months then ended:
Unit awards | Shares |  | Weighted Average Grant Date Fair Value
Outstanding July 1, 2014 | 709 |  |  | $ | 31.66 |
Granted | 178 |  |  | 53.52 |
Vested | (277 | ) |  | 19.69 |
Forfeited | (111 | ) |  | 22.74 |
Outstanding March 31, 2015 | 499 |  |  | $ | 48.08 |
ScheduleOfShareBasedPaymentAwardRSUValuationAssumptionsTableTextBlock [Table Text Block] | The weighted average assumptions used in this model to estimate fair value at the measurement date and resulting values for 164 unit awards granted are as follows:
Volatility | 17.8 | %
Risk free interest rate | 1.06 | %
Dividend yield | 1.5 | %
Stock Beta | 0.765 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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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