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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Available-For-Sale Marketable Securities) (Detail) - USD ($) $ in Thousands | Jun. 30, 2018 | Jun. 30, 2017
--- | --- | ---
Gross Unrealized Cost | $ 3,718 | $ 3,560
Gross Unrealized (Loss) | 0 | 0
Gross Unrealized Gain | 537 | 453
Gross Unrealized Fair Value | 4,255 | 4,013
Bond Mutual Fund [Member] |  |
Gross Unrealized Cost | 1,137 | 1,112
Gross Unrealized (Loss) | 0 | 0
Gross Unrealized Gain | 32 | 64
Gross Unrealized Fair Value | 1,169 | 1,176
Stock Mutual Funds [Member] |  |
Gross Unrealized Cost | 2,581 | 2,448
Gross Unrealized (Loss) | 0 | 0
Gross Unrealized Gain | 505 | 389
Gross Unrealized Fair Value | $ 3,086 | $ 2,837

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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X
- Definition Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References No definition available. + Details
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X
- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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- Details
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X
- Details
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