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Stock Based Compensation (Tables) | 12 Months Ended
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Jun. 30, 2020
Share-based Payment Arrangement [Abstract] |
Share-based Payment Arrangement, Option, 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, 2017 | 72 |  |  | $ | 50.04 |  |  |
Granted | — |  |  | — |  |  |
Forfeited | — |  |  | — |  |  |
Exercised | (20) |  |  | 17.45 |  |  |
Outstanding July 1, 2018 | 52 |  |  | 62.65 |  |  |
Granted | — |  |  | — |  |  |
Forfeited | — |  |  | — |  |  |
Exercised | (20) |  |  | 23.65 |  |  |
Outstanding July 1, 2019 | 32 |  |  | 87.27 |  |  |
Granted | — |  |  | — |  |  |
Forfeited | — |  |  | — |  |  |
Exercised | (10) |  |  | 87.27 |  |  |
Outstanding June 30, 2020 | 22 |  |  | $ | 87.27 |  |  | $ | 2,098 |
Vested and Expected to Vest June 30, 2020 | 22 |  |  | $ | 87.27 |  |  | $ | 2,098 |
Exercisable June 30, 2020 | 22 |  |  | $ | 87.27 |  |  | $ | 2,098 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The assumptions used in estimating fair value and resulting compensation expenses at the grant dates are as follows:
Expected Life (years) | 6.50 years
Volatility | 19.60 | %
Risk-free interest rate | 1.24 | %
Dividend yield | 1.28 | %
Schedule of Nonvested Restricted Stock Activity [Table Text Block] | The following table summarizes non-vested share awards activity:
Share awards | Shares |  | Weighted Average Grant Date Fair Value
Outstanding July 1, 2017 | 36 |  |  | $ | 73.66 |
Granted | — |  |  | — |
Vested | (12) |  |  | 58.61 |
Forfeited | (1) |  |  | 64.60 |
Outstanding July 1, 2018 | 23 |  |  | 81.33 |
Granted | — |  |  | — |
Vested | (17) |  |  | 79.41 |
Forfeited | — |  |  | — |
Outstanding July 1, 2019 | 6 |  |  | 87.27 |
Granted | — |  |  | — |
Vested | (6) |  |  | 87.27 |
Forfeited | — |  |  | — |
Outstanding June 30, 2020 | — |  |  | $ | — |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] | The following table summarizes non-vested unit awards as of June 30, 2020, as well as activity for the fiscal year then ended:
Unit awards | Shares |  | Weighted Average Grant Date Fair Value |  | Aggregate Intrinsic Value
Outstanding July 1, 2017 | 386 |  |  | $ | 67.84 |  |  |
Granted | 125 |  |  | 98.41 |  |  |
Vested | (156) |  |  | 57.00 |  |  |
Forfeited | (4) |  |  | 81.83 |  |  |
Outstanding July 1, 2018 | 351 |  |  | 83.37 |  |  |
Granted | 80 |  |  | 169.53 |  |  |
Vested | (129) |  |  | 82.06 |  |  |
Forfeited | (4) |  |  | 92.32 |  |  |
Outstanding July 1, 2019 | 298 |  |  | 107.00 |  |  |
Granted | 139 |  |  | 157.94 |  |  |
Vested | (69) |  |  | 98.25 |  |  |
Forfeited | (61) |  |  | 85.33 |  |  |
Outstanding June 30, 2020 | 307 |  |  | $136.41 |  | $56,476
ScheduleOfShareBasedPaymentAwardRSUValuationAssumptionsTableTextBlock [Table Text Block] | The weighted average assumptions used in the Monte Carlo pricing model to estimate fair value at the grant dates for awards with performance targets and service requirements are as follows:
| Year Ended June 30, |  |  |  |
| 2020 |  | 2019 |  | 2018
Compensation peer group: |  |  |  |  |
Volatility | 16.8 | % |  | 15.3 | % |  | 15.6 | %
Risk free interest rate | 1.34 | % |  | 2.89 | % |  | 1.55 | %
Dividend yield | 1.1 | % |  | 0.9 | % |  | 1.2 | %
Stock Beta | 0.709 |  | 0.669 |  | 0.687
S&P 1500 IT Index: |  |  |  |  |
Volatility | 16.8 | % |  | — | % |  | — | %
Risk free interest rate | 1.34 | % |  | — | % |  | — | %
Dividend yield | 1.1 | % |  | — | % |  | — | %
Stock Beta | 0.536 |  | — |  |  | — |

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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=116856206&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=116856206&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=116856206&loc=d3e5070-113901 + Details
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