FAIR VALUE - LEVEL 3 UNREALIZED GAIN (LOSS) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value adjustment	$ (117)	$ (125)	$ (243)	$ (328)
Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Interest income on investments	60	56	178	166
Fair value adjustment	(117)	(125)	(243)	(328)
Total	$ (57)	$ (69)	$ (65)	$ (162)