Stock Options and Restricted Stock Awards (Details) - USD ($)	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock approved	3,607,523
Vested options granted to employees after termination	90 days
Options granted	0	0	0
Aggregate intrinsic value for vested and outstanding options	$ 527,000	$ 1,811,000	$ 4,025,000
Total aggregate intrinsic value of options exercised	1,095,000	7,955,000	417,000
Cash received from option exercises	$ 514,000	$ 5,363,000	$ 1,006,000
Weighted-average contractual life of options outstanding	8 months
Forfeiture rate	15.20%	17.10%	17.00%
Total compensation cost for non-vested awards not yet recognized	$ 8,171,000
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of vested stocks	$ 5,803,000	$ 7,655,000	$ 10,851,000
Weighted-average period expected to recognize nonvested awards	1 year 7 months 5 days
Restricted Stock Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Restricted Stock Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of vested stocks	$ 0	$ 0	$ 2,621,000
Total compensation cost for non-vested awards not yet recognized	$ 2,791
Weighted-average period expected to recognize nonvested awards	1 year 7 months 5 days
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum period for payment on restricted stock unit following the six month anniversary date	30 days
Minimum period after grant date	2 years

Maximum period for payment on Restricted stock unit.

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Vested options granted to employees after termination.

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Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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