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INVESTMENTS (Details) - Fair Value, Assets Measured on Recurring and Nonrecurring Basis - USD ($) $ in Thousands | Dec. 31, 2021 | Jun. 30, 2021
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Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | $ 15,481 | $ 18,258
Debt securities fair value |  | 8,755 |
Total investments carried at fair value on a recurring basis: |  | 30,452 | 35,307
Investments carried at fair value on a nonrecurring basis: |  |  |
Other investments | [1] |  | 2,554
Equity Securities International [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 8,309 | 10,998
Mutual Funds - Fixed Income [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 6,291 | 6,322
Mutual Funds Global Equity [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 881 | 938
Available-for-sale Securities [Member] | Corporate Debt Securities [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Debt securities fair value |  | 14,971 | 17,049
Fair Value, Inputs, Level 1 [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 8,165 | 10,097
Total investments carried at fair value on a recurring basis: |  | 8,165 | 10,097
Investments carried at fair value on a nonrecurring basis: |  |  |
Other investments | [1] |  | 0
Fair Value, Inputs, Level 1 [Member] | Equity Securities International [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 993 | 2,837
Fair Value, Inputs, Level 1 [Member] | Mutual Funds - Fixed Income [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 6,291 | 6,322
Fair Value, Inputs, Level 1 [Member] | Mutual Funds Global Equity [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 881 | 938
Fair Value, Inputs, Level 1 [Member] | Available-for-sale Securities [Member] | Corporate Debt Securities [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Debt securities fair value |  | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 0 | 135
Total investments carried at fair value on a recurring basis: |  | 0 | 135
Investments carried at fair value on a nonrecurring basis: |  |  |
Other investments | [1] |  | 0
Fair Value, Inputs, Level 2 [Member] | Equity Securities International [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 0 | 135
Fair Value, Inputs, Level 2 [Member] | Mutual Funds - Fixed Income [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Mutual Funds Global Equity [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Available-for-sale Securities [Member] | Corporate Debt Securities [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Debt securities fair value |  | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 7,316 | 8,026
Total investments carried at fair value on a recurring basis: |  | 22,287 | 25,075
Investments carried at fair value on a nonrecurring basis: |  |  |
Other investments | [1] |  | 2,554
Fair Value, Inputs, Level 3 [Member] | Equity Securities International [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 7,316 | 8,026
Fair Value, Inputs, Level 3 [Member] | Mutual Funds - Fixed Income [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Mutual Funds Global Equity [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Equity securities fair value |  | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Available-for-sale Securities [Member] | Corporate Debt Securities [Member] |  |  |
Investments carried at fair value on a recurring basis: |  |  |
Debt securities fair value |  | $ 14,971 | $ 17,049
[1] | Other investments include equity securities without readily determinable fair values that were adjusted as a result of the measurement alternative on dates during the fiscal year ended June 30, 2021. These securities are classified as level 3 due to the infrequency of the observable price changes and/or restrictions on the shares.

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