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Stock Based Compensation (Tables) | 3 Months Ended
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Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Share-based Compensation, Stock Options, Activity [Table Text Block] | A summary of option plan activity under these plans is as follows:
| Number of Shares |  | Weighted Average Exercise Price |  | Aggregate Intrinsic Value
Outstanding July 1, 2018 | 52 |  |  | $ | 62.65 |  |  |
Granted | — |  |  | — |  |  |
Forfeited | — |  |  | — |  |  |
Exercised | — |  |  | — |  |  |
Outstanding September 30, 2018 | 52 |  |  | $ | 62.65 |  |  | $ | 5,036 |
Vested and Expected to Vest September 30, 2018 | 52 |  |  | $ | 62.65 |  |  | $ | 5,036 |
Exercisable September 30, 2018 | 20 |  |  | $ | 23.65 |  |  | $ | 2,729 |
Schedule of Nonvested Restricted Stock Activity [Table Text Block] | The following table summarizes non-vested share awards as of September 30, 2018, as well as activity for the three months then ended:
Share awards | Shares |  | Weighted Average Grant Date Fair Value
Outstanding July 1, 2018 | 23 |  |  | $ | 81.33 |
Granted | — |  |  | — |
Vested | (17 | ) |  | 79.52 |
Forfeited | — |  |  | — |
Outstanding September 30, 2018 | 6 |  |  | $ | 86.47 |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] | The following table summarizes non-vested unit awards as of September 30, 2018, as well as activity for the three months then ended:
Unit awards | Units |  | Weighted Average Grant Date Fair Value |  | Aggregate Intrinsic Value
Outstanding July 1, 2018 | 351 |  |  | $ | 83.37 |  |  |
Granted | 39 |  |  | 202.92 |  |  |
Vested | (104 | ) |  | 76.41 |  |  |
Forfeited | (4 | ) |  | 86.89 |  |  |
Outstanding September 30, 2018 | 282 |  |  | $ | 102.33 |  |  | $ | 45,161 |
ScheduleOfShareBasedPaymentAwardRSUValuationAssumptionsTableTextBlock [Table Text Block] | The weighted average assumptions used in this model to estimate fair value at the measurement date and resulting values for 39 unit awards granted in fiscal 2019 are as follows:
Volatility | 15.30 | %
Risk free interest rate | 2.89 | %
Dividend yield | 0.90 | %
Stock Beta | 0.669 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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