INVESTMENTS (Details) - Fair Value, Assets Measured on Recurring Basis - USD ($) $ in Thousands	Mar. 31, 2021	Jun. 30, 2020
Investments in debt securities:
Total securities fair value	$ 47,188	$ 11,464
Equity Securities - International [Member]
Investments in equity securities:
Total securities fair value	16,085	4,479
Equity Securities - Domestic [Member]
Investments in equity securities:
Total securities fair value	0	0
Fixed Income Securities [Member]
Investments in equity securities:
Total securities fair value	6,322	6,322
Mutual Funds, Global Equity [Member]
Investments in equity securities:
Total securities fair value	854	0
Mutual Funds, Domestic Equity [Member]
Investments in equity securities:
Total securities fair value	0	663
Equity Securities [Member]
Investments in equity securities:
Total securities fair value	23,261	11,464
Available-for-sale Securities [Member] | Corporate Debt Securities [Member]
Investments in debt securities:
Total securities fair value, Available-for-sale	23,927	0
Fair Value, Inputs, Level 1 [Member]
Investments in debt securities:
Total securities fair value	12,309	11,432
Fair Value, Inputs, Level 1 [Member] | Equity Securities - International [Member]
Investments in equity securities:
Total securities fair value	5,133	4,447
Fair Value, Inputs, Level 1 [Member] | Equity Securities - Domestic [Member]
Investments in equity securities:
Total securities fair value	0	0
Fair Value, Inputs, Level 1 [Member] | Fixed Income Securities [Member]
Investments in equity securities:
Total securities fair value	6,322	6,322
Fair Value, Inputs, Level 1 [Member] | Mutual Funds, Global Equity [Member]
Investments in equity securities:
Total securities fair value	854	0
Fair Value, Inputs, Level 1 [Member] | Mutual Funds, Domestic Equity [Member]
Investments in equity securities:
Total securities fair value	0	663
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member]
Investments in equity securities:
Total securities fair value	12,309	11,432
Fair Value, Inputs, Level 1 [Member] | Available-for-sale Securities [Member] | Corporate Debt Securities [Member]
Investments in debt securities:
Total securities fair value, Available-for-sale	0	0
Fair Value, Inputs, Level 2 [Member]
Investments in debt securities:
Total securities fair value	0	32
Fair Value, Inputs, Level 2 [Member] | Equity Securities - International [Member]
Investments in equity securities:
Total securities fair value	0	32
Fair Value, Inputs, Level 2 [Member] | Equity Securities - Domestic [Member]
Investments in equity securities:
Total securities fair value	0	0
Fair Value, Inputs, Level 2 [Member] | Fixed Income Securities [Member]
Investments in equity securities:
Total securities fair value	0	0
Fair Value, Inputs, Level 2 [Member] | Mutual Funds, Global Equity [Member]
Investments in equity securities:
Total securities fair value	0	0
Fair Value, Inputs, Level 2 [Member] | Mutual Funds, Domestic Equity [Member]
Investments in equity securities:
Total securities fair value	0	0
Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member]
Investments in equity securities:
Total securities fair value	0	32
Fair Value, Inputs, Level 2 [Member] | Available-for-sale Securities [Member] | Corporate Debt Securities [Member]
Investments in debt securities:
Total securities fair value, Available-for-sale	0	0
Fair Value, Inputs, Level 3 [Member]
Investments in debt securities:
Total securities fair value	34,879	0
Fair Value, Inputs, Level 3 [Member] | Equity Securities - International [Member]
Investments in equity securities:
Total securities fair value	10,952	0
Fair Value, Inputs, Level 3 [Member] | Equity Securities - Domestic [Member]
Investments in equity securities:
Total securities fair value	0	0
Fair Value, Inputs, Level 3 [Member] | Fixed Income Securities [Member]
Investments in equity securities:
Total securities fair value	0	0
Fair Value, Inputs, Level 3 [Member] | Mutual Funds, Global Equity [Member]
Investments in equity securities:
Total securities fair value	0	0
Fair Value, Inputs, Level 3 [Member] | Mutual Funds, Domestic Equity [Member]
Investments in equity securities:
Total securities fair value	0	0
Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member]
Investments in equity securities:
Total securities fair value	10,952	0
Fair Value, Inputs, Level 3 [Member] | Available-for-sale Securities [Member] | Corporate Debt Securities [Member]
Investments in debt securities:
Total securities fair value, Available-for-sale	$ 23,927	$ 0