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INVESTMENTS (Details) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($)
INVESTMENTS (Details) [Line Items] |  |  |  |  |
Fair value of investments held |  | $ 13,121 |  | $ 13,585 |
Cost basis of investments held |  | $ 13,600 |  |  |
Market value of investments to Company's total assets |  | 51.40% |  |  |
Other investments |  | $ 2,130 |  | 1,924 |
Available-for-sale, net unrealized gain (loss), gross |  | 461 |  | 45 |
Available-for-sale, net unrealized gain (loss), net of tax |  | 461 |  | 45 |
Other-than-temporary impairments |  | 411 |  | 259 | $ 247
Available-for-sale, amortized cost | [1],[2] | 2,940 |  | 3,436 |
Available-for-sale securities, fair value | [1],[2] | 3,401 |  | 3,481 |
Cost-method Investments, Other than Temporary Impairment |  | $ 72 |  | $ 258 | $ 0
Percentage of Financial Assets Derived From Level 1 Inputs Measured at Fair Value |  | 100.00% |  | 100.00% |
Trading Securities, Gross Unrealized Loss | [3] | $ 978 |  | $ 1,068 |
Offshore Fund [Member] | Trading Securities [Member] |  |  |  |  |
INVESTMENTS (Details) [Line Items] |  |  |  |  |
Fair value of investments held |  | 415 |  | 358 |
Corporate Debt Securities [Member] |  |  |  |  |
INVESTMENTS (Details) [Line Items] |  |  |  |  |
Available-for-sale, amortized cost | [2] | 1,042 | [4] | 1,038 |
Available-for-sale securities, fair value | [2] | 1,469 | [4] | 1,124 |
Offshore Fund [Member] |  |  |  |  |
INVESTMENTS (Details) [Line Items] |  |  |  |  |
Trading Securities, Gross Unrealized Loss | [3] | $ 769 |  | $ 826 |
Impaired Securities [Member] |  |  |  |  |
INVESTMENTS (Details) [Line Items] |  |  |  |  |
Number of positions, subject to impairment loss |  | 4 |  | 8 |
Available-for-Sale Securities, Combined Cost Basis of Impaired Securities |  | $ 627 |  | $ 702 |
Available-for-Sale Securities, Combined Fair Value of Impaired Securities |  | $ 216 |  | $ 466 |
Number of Impaired Securities Held at Cost |  | 1 |  | 3 |
Cost Method Investments, Original Cost |  | $ 72 |  | $ 1,100 |
Cost Method Investments |  | $ 0 |  | 867 |
Impaired Securities [Member] | Corporate Debt Securities [Member] |  |  |  |  |
INVESTMENTS (Details) [Line Items] |  |  |  |  |
Number of positions, subject to impairment loss |  |  |  |  | 1
Available-for-sale, amortized cost |  |  |  |  | $ 44
Available-for-sale securities, fair value |  |  |  |  | $ 5
Impaired Securities, Net Present Value of Estimated Cash Flows [Member] | Corporate Debt Securities [Member] |  |  |  |  |
INVESTMENTS (Details) [Line Items] |  |  |  |  |
Number of positions, subject to impairment loss |  |  |  |  | 2
Available-for-Sale Securities, Combined Cost Basis of Impaired Securities |  |  |  | 970 |
Available-for-Sale Securities, Combined Fair Value of Impaired Securities |  |  |  | $ 947 |
Impaired Securities, Net Present Value of Estimated Cash Flows [Member] | Corporate Debt Securities, One [Member] |  |  |  |  |
INVESTMENTS (Details) [Line Items] |  |  |  |  |
Available-for-sale, amortized cost |  |  |  |  | $ 310
Available-for-sale securities, fair value |  |  |  |  | 234
Impaired Securities, Net Present Value of Estimated Cash Flows [Member] | Corporate Debt Securities, Two [Member] |  |  |  |  |
INVESTMENTS (Details) [Line Items] |  |  |  |  |
Available-for-sale, amortized cost |  |  |  |  | 1,100
Available-for-sale securities, fair value |  |  |  |  | $ 970
[1] | Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of June 30, 2017, are $461 and $461, respectively, and as of June 30, 2016, are $45 and $45, respectively.
[2] | Unrealized gains and losses on available-for-sale securities are excluded from earnings and recorded in other comprehensive income (loss) as a separate component of shareholders' equity until realized.
[3] | Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.
[4] | Corporate debt matures in 2024.

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