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Stock-Based Compensation (Narrative) (Details) $ in Millions | 12 Months Ended
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Jun. 30, 2020 USD ($) shares
Stock Settled Stock Appreciation Rights SARS [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period (in years) | 3 years
Unrecognized compensation expense | $ 6.1
Weighted-average period over which remaining compensation expense will be recognized (in years) | 2 years
Employee Restricted Stock [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period (in years) | 3 years
Director Restricted Stock [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period (in years) | 1 year
Restricted Stock [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized compensation expense | $ 5.5
Weighted-average period over which remaining compensation expense will be recognized (in years) | 2 years
2015 Plan [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Common shares reserved for issuance to employees and directors | shares | 1,500,000
2015 Plan [Member] | Maximum [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Maximum term of stock awards granted (in years) | 7 years

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