INVESTMENTS (Details) - Components of Company's Equity Securities Measured at Fair Value - Equity Securities [Member] - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Equities International [Member]
Equity securities at fair value
Securities, Cost	$ 7,076	$ 5,641
Securities, Unrealized Gains (Losses)	3,922	(1,162)
Securities, Fair Value	10,998	4,479
Common Stock - Domestic [Member]
Equity securities at fair value
Securities, Cost	45	45
Securities, Unrealized Gains (Losses)	(45)	(45)
Securities, Fair Value	0	0
Fixed Income Securities [Member]
Equity securities at fair value
Securities, Cost	6,313	6,313
Securities, Unrealized Gains (Losses)	9	9
Securities, Fair Value	6,322	6,322
Mutual Funds Global Equity [Member]
Equity securities at fair value
Securities, Cost	929	0
Securities, Unrealized Gains (Losses)	9	0
Securities, Fair Value	938	0
Mutual Funds, Domestic Equity [Member]
Equity securities at fair value
Securities, Cost	0	929
Securities, Unrealized Gains (Losses)	0	(266)
Securities, Fair Value	0	663
Equity Securities [Member]
Equity securities at fair value
Securities, Cost	14,363	12,928
Securities, Unrealized Gains (Losses)	3,895	(1,464)
Securities, Fair Value	$ 18,258	$ 11,464