INVESTMENTS (Details) - Fair Value, Assets Measured on Recurring Basis - USD ($) $ in Thousands		Mar. 31, 2018	Jun. 30, 2017
Trading securities
Trading securities, at fair value	[1]	$ 7,147	$ 9,720
Available-for-sale securities
Total available-for-sale securities	[1],[2]	12,951	3,401
Total Investments		20,098	13,121
Fair Value, Inputs, Level 1 [Member]
Trading securities
Trading securities, at fair value		7,147	9,305
Available-for-sale securities
Total available-for-sale securities		12,951	3,401
Total Investments		20,098	12,706
Fair Value, Inputs, Level 2 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Total Investments		0	0
Fair Value, Inputs, Level 3 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Total Investments		0	0
Fixed Income Securities [Member]
Trading securities
Trading securities, at fair value	[1]	6,773	8,927
Available-for-sale securities
Total available-for-sale securities	[1]	986	1,144
Fixed Income Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Trading securities
Trading securities, at fair value		6,773	8,927
Available-for-sale securities
Total available-for-sale securities		986	1,144
Fixed Income Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Fixed Income Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Mutual Funds, Domestic Equity [Member]
Trading securities
Trading securities, at fair value	[1]	374	378
Available-for-sale securities
Total available-for-sale securities	[1]	415	406
Mutual Funds, Domestic Equity [Member] | Fair Value, Inputs, Level 1 [Member]
Trading securities
Trading securities, at fair value		374	378
Available-for-sale securities
Total available-for-sale securities		415	406
Mutual Funds, Domestic Equity [Member] | Fair Value, Inputs, Level 2 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Mutual Funds, Domestic Equity [Member] | Fair Value, Inputs, Level 3 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Other Securities [Member]
Trading securities
Trading securities, at fair value	[1]	0	0
Available-for-sale securities
Total available-for-sale securities	[1]	0	66
Other Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	66
Other Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Other Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Offshore Fund [Member]
Trading securities
Trading securities, at fair value	[1]	0	415
Offshore Fund [Member] | Fair Value, Inputs, Level 1 [Member]
Trading securities
Trading securities, at fair value	[3]
Common Stock - Domestic [Member]
Available-for-sale securities
Total available-for-sale securities	[1]	0	113
Common Stock - Domestic [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities
Total available-for-sale securities		0	113
Common Stock - Domestic [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities
Total available-for-sale securities		0	0
Common Stock - Domestic [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale securities
Total available-for-sale securities		0	0
Common Stock - International [Member]
Available-for-sale securities
Total available-for-sale securities	[1]	9,839	203
Common Stock - International [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities
Total available-for-sale securities		9,839	203
Common Stock - International [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities
Total available-for-sale securities		0	0
Common Stock - International [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale securities
Total available-for-sale securities		0	0
Corporate Debt Securities [Member]
Available-for-sale securities
Total available-for-sale securities	[1],[4]	1,711	1,469
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities
Total available-for-sale securities		1,711	1,469
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities
Total available-for-sale securities		0	0
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale securities
Total available-for-sale securities		$ 0	$ 0

[1] Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.

[2] Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of March 31, 2018, are $7,917 and $6,430, respectively, and as of June 30, 2017, are $461 and $461, respectively.

[3] In accordance with Subtopic 820-10, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Balance Sheets.

[4] Corporate debt has stated maturity in 2024, but issuer has issued notice that it intends to redeem early, as discussed below and in Note 12, Subsequent Events.