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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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