MARKETABLE SECURITIES (Schedule of Available-for-sale Marketable Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 20,156	$ 27,025
Gross unrealized gain	2,255	2,965
Gross unrealized loss	(161)	(29)
Fair value	22,250	29,961
Within One Year [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	13,531	19,430
Gross unrealized gain	2,110	2,585
Gross unrealized loss	(134)	(23)
Fair value	15,507	21,992
One to Five Years [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	6,469	7,501
Gross unrealized gain	137	361
Gross unrealized loss	(26)	(6)
Fair value	6,580	7,856
After Five Years through Ten Years [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	156	94
Gross unrealized gain	8	$ 19
Gross unrealized loss	(1)
Fair value	163	$ 113
Stock and Index Linked Notes [Member] | Within One Year [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	12,305	18,881
Gross unrealized gain	2,083	2,522
Gross unrealized loss	(72)	(23)
Fair value	14,316	21,380
Government Debentures [Member] | Within One Year [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	287	97
Gross unrealized gain	1	$ 9
Gross unrealized loss	(10)
Fair value	278	$ 106
Government Debentures [Member] | One to Five Years [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	2,033	2,595
Gross unrealized gain	40	98
Gross unrealized loss	(9)	(1)
Fair value	2,064	2,692
Corporate Debentures [Member] | Within One Year [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	939	452
Gross unrealized gain	26	$ 54
Gross unrealized loss	(52)
Fair value	913	$ 506
Corporate Debentures [Member] | One to Five Years [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	4,436	4,906
Gross unrealized gain	97	263
Gross unrealized loss	(17)	(5)
Fair value	4,516	5,164
Corporate Debentures [Member] | After Five Years through Ten Years [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	156	94
Gross unrealized gain	8	$ 19
Gross unrealized loss	(1)
Fair value	$ 163	$ 113