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Investments (Tables) | 12 Months Ended
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Jun. 30, 2017
Investments, Debt and Equity Securities [Abstract] |
Schedule of Investments | The following table shows gains and losses on trading securities by the Company:
|  | Year Ended June 30,
(In thousands) |  | 2017 |  | 2016 |  | 2015
Total gains (losses) recognized from trading securities |  | $ | 286 |  |  | $ | 611 |  |  | $ | (270 | )
Less: Realized gains from sales of trading securities |  | 1,909 |  |  | 29 |  |  | 89 |
Unrealized (losses) gains from trading securities |  | $ | (1,623 | ) |  | $ | 582 |  |  | $ | (359 | )

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