Summary of Significant Accounting Policies (Schedule Of Short-Term And Long-Term Investments) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	$ 5,219	$ 7,936
Investments, Fair Value or Carrying Value	2,244	4,961
Short-Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	1,474	4,134
Investments, Fair Value or Carrying Value	1,474	4,134
Long-Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	3,745	3,802
Investments, Fair Value or Carrying Value	770	827
Bank Guarantee [Member] | Short-Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	77	238
Investments, Fair Value or Carrying Value	77	238
Mutual Funds [Member] | Short-Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	29	34
Investments, Fair Value or Carrying Value	29	34
Fixed Deposits And Certificates Of Deposit [Member] | Short-Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	1,368	3,862
Investments, Fair Value or Carrying Value	1,368	3,862
Fixed Deposits And Certificates Of Deposit [Member] | Long-Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	45	102
Investments, Fair Value or Carrying Value	45	102
Preferred Shares [Member] | Long-Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Cost	3,700	3,700
Investments, Fair Value or Carrying Value	$ 725	$ 725