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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015
RELATED PARTY TRANSACTIONS (Details) [Line Items] |  |  |  |
Accounts and Other Receivables, Net, Current |  | $ 520 | $ 787 |
Trading Securities | [1],[2] | 9,720 | 10,104 |
Other Long-term Investments |  | 2,130 | 1,924 |
Investment Income, Interest and Dividend |  | 820 | 542 | $ 651
Mutual Fund [Member] |  |  |  |
RELATED PARTY TRANSACTIONS (Details) [Line Items] |  |  |  |
Accounts and Other Receivables, Net, Current |  | 396 | 595 |
USGIF and offshore clients [Member] |  |  |  |
RELATED PARTY TRANSACTIONS (Details) [Line Items] |  |  |  |
Fair Value Investment Included in Trading Securitites and Available for Sale Securities |  | 11,100 | 11,500 |
Investment Income, Dividends and Capital Gains |  | 110 | 180 | 244
Recognized Gains (Losses) on Related Party Securities, Net |  | 15 | (273) | (596)
Private Company [Member] |  |  |  |
RELATED PARTY TRANSACTIONS (Details) [Line Items] |  |  |  |
Recognized Gains (Losses) on Related Party Securities, Net |  |  | 211 |
Other Long-term Investments |  | 1,500 | 723 |
Investment Income, Interest and Dividend |  | 105 | 117 | $ 68
Offshore Fund [Member] |  |  |  |
RELATED PARTY TRANSACTIONS (Details) [Line Items] |  |  |  |
Trading Securities | [2] | $ 415 | $ 358 |
[1] | In accordance with Subtopic 820-10, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Balance Sheets.
[2] | Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.

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