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INVESTMENTS (Details) - Fair Value, Assets Measured on Recurring and Nonrecurring Basis - USD ($) $ in Thousands		Mar. 31, 2022	Jun. 30, 2021
Investments in equity securities:
Equity securities fair value		$ 12,478	$ 18,258
Investments in debt securities:
Debt securities fair value		8,683
Total investments carried at fair value on a recurring basis:		25,184	35,307
Investments carried at fair value on a nonrecurring basis:
Other investments	[1]	362	2,554
Equity Securities International [Member]
Investments in equity securities:
Equity securities fair value		5,510	10,998
Mutual Funds - Fixed Income [Member]
Investments in equity securities:
Equity securities fair value		6,171	6,322
Mutual Funds Global Equity [Member]
Investments in equity securities:
Equity securities fair value		797	938
Corporate Debt Securities [Member] | Available-for-Sale Securities [Member]
Investments in debt securities:
Debt securities fair value		12,706	17,049
Fair Value, Inputs, Level 1 [Member]
Investments in equity securities:
Equity securities fair value		7,720	10,097
Investments in debt securities:
Total investments carried at fair value on a recurring basis:		7,720	10,097
Investments carried at fair value on a nonrecurring basis:
Other investments	[1]	0	0
Fair Value, Inputs, Level 1 [Member] | Equity Securities International [Member]
Investments in equity securities:
Equity securities fair value		752	2,837
Fair Value, Inputs, Level 1 [Member] | Mutual Funds - Fixed Income [Member]
Investments in equity securities:
Equity securities fair value		6,171	6,322
Fair Value, Inputs, Level 1 [Member] | Mutual Funds Global Equity [Member]
Investments in equity securities:
Equity securities fair value		797	938
Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member] | Available-for-Sale Securities [Member]
Investments in debt securities:
Debt securities fair value		0	0
Fair Value, Inputs, Level 2 [Member]
Investments in equity securities:
Equity securities fair value		0	135
Investments in debt securities:
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	0
Fair Value, Inputs, Level 2 [Member] | Equity Securities International [Member]
Investments in equity securities:
Equity securities fair value		0	135
Fair Value, Inputs, Level 2 [Member] | Mutual Funds - Fixed Income [Member]
Investments in equity securities:
Equity securities fair value		0	0
Fair Value, Inputs, Level 2 [Member] | Mutual Funds Global Equity [Member]
Investments in equity securities:
Equity securities fair value		0	0
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] | Available-for-Sale Securities [Member]
Investments in debt securities:
Debt securities fair value		0	0
Fair Value, Inputs, Level 3 [Member]
Investments in equity securities:
Equity securities fair value		4,758	8,026
Investments in debt securities:
Total investments carried at fair value on a recurring basis:		17,464	25,075
Investments carried at fair value on a nonrecurring basis:
Other investments	[1]	362	2,554
Fair Value, Inputs, Level 3 [Member] | Equity Securities International [Member]
Investments in equity securities:
Equity securities fair value		4,758	8,026
Fair Value, Inputs, Level 3 [Member] | Mutual Funds - Fixed Income [Member]
Investments in equity securities:
Equity securities fair value		0	0
Fair Value, Inputs, Level 3 [Member] | Mutual Funds Global Equity [Member]
Investments in equity securities:
Equity securities fair value		0	0
Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member] | Available-for-Sale Securities [Member]
Investments in debt securities:
Debt securities fair value		$ 12,706	$ 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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