Reinsurance Assets And Policy Holder Liabilities Under Insurance And Investment Contracts (Summary Of The Movement In Reinsurance Assets And Policy Holder Liabilities Under Insurance Contracts) (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2018	Jun. 30, 2017
Reinsurance Assets And Policy Holder Liabilities Under Insurance And Investment Contracts [Abstract]
Reinsurance assets, Beginning Balance	[1]	$ 191	$ 171
Reinsurance assets, Increase in policyholder benefits under insurance contracts	[1]	1,899	262
Reinsurance assets, Claims and policyholders' benefits under insurance contracts	[1]	(1,449)	(265)
Reinsurance assets, Foreign currency adjustment	[1],[2]	(8)	23
Reinsurance assets, Ending Balance	[1]	633	191
Insurance contracts, Beginning Balance	[3]	(1,611)	(1,078)
Insurance contracts, Increase in policyholder benefits under insurance contracts	[3]	(9,714)	(4,481)
Insurance contracts, Claims and policyholders' benefits under insurance contracts	[3]	9,214	4,091
Insurance contracts, Foreign currency adjustment	[2],[3]	79	(143)
Insurance contracts, Ending Balance	[3]	$ (2,032)	$ (1,611)

[1] Included in other long-term assets; (refer to Note 9)

[2] Represents the effects of the fluctuations of the ZAR against the U.S. dollar.

[3] Included in other long-term liabilities