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Related Party Transactions (Narrative) (Details) - DNI [Member] $ in Millions | 9 Months Ended
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Mar. 31, 2019 USD ($)
Related Party Transaction [Line Items] |
Percentage of direct shareholding | 38.00%
Leased Building From Related Party [Member] |
Related Party Transaction [Line Items] |
Amount paid for rental | $ 1.0
Executive Officers [Member] |
Related Party Transaction [Line Items] |
Percentage of direct shareholding | 16.00%

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