FAIR VALUE MEASUREMENTS (Details 2) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Net gain or (loss) for the year	$ (917,000)	$ 10,446,000
Other Investments [Member]
Other non-marketable investments	15,379,000	16,536,000
Other Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Other non-marketable investments	0	0
Other Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Other non-marketable investments	0	0
Other Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Other non-marketable investments	$ 15,379,000	$ 16,536,000