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Investments (Details) - USD ($) | Jun. 30, 2019 | Jun. 30, 2018
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Investments Debt And Equity Securities [Abstract] |  |
Investments | $ 0 | $ 3,601,000

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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