Significant Accounting Policies (Schedule Of Property Plant And Equipment Expected Economic Lives) (Details)	12 Months Ended
	Jun. 30, 2018
Minimum [Member] | Computer Equipment [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Office Equipment [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Minimum [Member] | Vehicles [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Furniture and Fittings [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Building And Structures [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	8 years
Maximum [Member] | Computer Equipment [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	8 years
Maximum [Member] | Office Equipment [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Maximum [Member] | Vehicles [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	8 years
Maximum [Member] | Furniture and Fittings [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Maximum [Member] | Building And Structures [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	30 years