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INVESTMENTS (Details) - Components of Company's Trading and Available-for-Sale Investments - USD ($) $ in Thousands | Mar. 31, 2018 | Jun. 30, 2017
--- | --- | ---
Trading securities1 |  |  |
Trading, cost | [1] | $ 7,365 | $ 10,648
Trading, gross unrealized gain | [1] | 18 | 50
Trading, gross unrealized (losses) | [1] | (236) | (978)
Trading, fair value | [1] | 7,147 | 9,720
Available-for-sale securities2 |  |  |
Available-for-sale, cost | [1],[2] | 5,034 | 2,940
Available-for-sale, gross unrealized gain | [1],[2] | 8,007 | 466
Available-for-sale, gross unrealized (losses) | [1],[2] | (90) | (5)
Available-for-sale, fair value | [1],[2] | 12,951 | 3,401
Total securities at fair value, cost |  | 12,399 | 13,588
Total securities at fair value, gross unrealized gain |  | 8,025 | 516
Total securities at fair value, gross unrealized (losses) |  | (326) | (983)
Total securities at fair value, fair value |  | 20,098 | 13,121
Fixed Income Securities [Member] |  |  |
Trading securities1 |  |  |
Trading, cost | [1] | 6,785 | 8,884
Trading, gross unrealized gain | [1] | 18 | 50
Trading, gross unrealized (losses) | [1] | (30) | (7)
Trading, fair value | [1] | 6,773 | 8,927
Available-for-sale securities2 |  |  |
Available-for-sale, cost | [1] | 1,000 | 1,148
Available-for-sale, gross unrealized gain | [1] | 0 | 1
Available-for-sale, gross unrealized (losses) | [1] | (14) | (5)
Available-for-sale, fair value | [1] | 986 | 1,144
Mutual Funds, Domestic Equity [Member] |  |  |
Trading securities1 |  |  |
Trading, cost | [1] | 535 | 535
Trading, gross unrealized gain | [1] | 0 | 0
Trading, gross unrealized (losses) | [1] | (161) | (157)
Trading, fair value | [1] | 374 | 378
Available-for-sale securities2 |  |  |
Available-for-sale, cost | [1] | 394 | 394
Available-for-sale, gross unrealized gain | [1] | 21 | 12
Available-for-sale, gross unrealized (losses) | [1] | 0 | 0
Available-for-sale, fair value | [1] | 415 | 406
Other Securities [Member] |  |  |
Trading securities1 |  |  |
Trading, cost | [1] | 45 | 45
Trading, gross unrealized gain | [1] | 0 | 0
Trading, gross unrealized (losses) | [1] | (45) | (45)
Trading, fair value | [1] | 0 | 0
Available-for-sale securities2 |  |  |
Available-for-sale, cost | [1] | 0 | 56
Available-for-sale, gross unrealized gain | [1] | 0 | 10
Available-for-sale, gross unrealized (losses) | [1] | 0 | 0
Available-for-sale, fair value | [1] | 0 | 66
Offshore Fund [Member] |  |  |
Trading securities1 |  |  |
Trading, cost | [1] | 0 | 1,184
Trading, gross unrealized gain | [1] | 0 | 0
Trading, gross unrealized (losses) | [1] | 0 | (769)
Trading, fair value | [1] | 0 | 415
Common Stock - Domestic [Member] |  |  |
Available-for-sale securities2 |  |  |
Available-for-sale, cost | [1] | 0 | 109
Available-for-sale, gross unrealized gain | [1] | 0 | 4
Available-for-sale, gross unrealized (losses) | [1] | 0 | 0
Available-for-sale, fair value | [1] | 0 | 113
Common Stock - International [Member] |  |  |
Available-for-sale securities2 |  |  |
Available-for-sale, cost | [1] | 2,554 | 191
Available-for-sale, gross unrealized gain | [1] | 7,361 | 12
Available-for-sale, gross unrealized (losses) | [1] | (76) | 0
Available-for-sale, fair value | [1] | 9,839 | 203
Corporate Debt Securities [Member] |  |  |
Available-for-sale securities2 |  |  |
Available-for-sale, cost | [1],[3] | 1,086 | 1,042
Available-for-sale, gross unrealized gain | [1],[3] | 625 | 427
Available-for-sale, gross unrealized (losses) | [1],[3] | 0 | 0
Available-for-sale, fair value | [1],[3] | $ 1,711 | $ 1,469
[1] | Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.
[2] | Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of March 31, 2018, are $7,917 and $6,430, respectively, and as of June 30, 2017, are $461 and $461, respectively.
[3] | Corporate debt has stated maturity in 2024, but issuer has issued notice that it intends to redeem early, as discussed below and in Note 12, Subsequent Events.

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