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Employee Benefit Plans (Details Textual) - USD ($) | 12 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Employee Benefit Plans (Textual) [Abstract] |  |  |
Percentage of limitation on pretax compensation | 25.00% |  |
Company match of first 3% of employee contributions | 100.00% |  |
Percentage of employee contribution for first half | 3.00% |  |
Employee contribution for next 2% | 50.00% |  |
Percentage of employee contribution for next half | 2.00% |  |
Contribution made by company | $ 6,200,000 | $ 6,200,000 | $ 5,800,000
Employee share purchase limit aggregate market value | $ 60,000 |  |
Shares available at ESPP | 1,000,000 |  |
Employee Stock Purchase Plan, Termination Date | Jan. 02, 2021 |  |
Shares issued under ESPP | 20,733 | 15,812 | 21,920
Zone Red [Member] |  |  |
Multiemployer Plans [Line Items] |  |  |
Percentage of plan funded | 65.00% |  |
Description of plans funded | less than 65 percent |  |
Zone Yellow [Member] |  |  |
Multiemployer Plans [Line Items] |  |  |
Percentage of plan funded | 80.00% |  |
Description of plans funded | less than 80 percent |  |
Zone Green [Member] |  |  |
Multiemployer Plans [Line Items] |  |  |
Percentage of plan funded | 80.00% |  |
Description of plans funded | at least 80 percent |  |

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- Definition Defined contribution plan employer matching contribution percent for next two percent of employee contribution. + References No definition available. + Details
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- Definition Maximum percentage of employee gross pay, by the terms of the plan, that the employee may contribute to a defined contribution plan. + References No definition available. + Details
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- Definition Employee benefit plans. + References No definition available. + Details
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- Definition Employee stock purchase plan per participant maximum annual share purchase limited to aggregate market value. + References No definition available. + Details
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- Definition Employee stock purchase plan maximum number of shares available for issuance. + References No definition available. + Details
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