FAIR VALUE - LEVEL 3 UNREALIZED GAIN (LOSS) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value adjustment	$ 295	$ 430	$ 897	$ 625
Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Interest income on investments	105	29	137	59
Fair value adjustment	295	430	897	625
Total	$ 400	$ 459	$ 1,034	$ 684