Concentration Of Risk (Summary Of Significant Customers) (Details)	Jun. 30, 2012 Customer A [Member]	Jun. 30, 2011 Customer A [Member]	Jun. 30, 2011 Customer B [Member]	Jun. 30, 2010 Customer C [Member]	Jun. 30, 2010 Customer D [Member]	Jun. 30, 2010 Maximum [Member] Customer A [Member]	Jun. 30, 2012 Maximum [Member] Customer B [Member]	Jun. 30, 2010 Maximum [Member] Customer B [Member]	Jun. 30, 2012 Maximum [Member] Customer C [Member]	Jun. 30, 2011 Maximum [Member] Customer C [Member]	Jun. 30, 2012 Maximum [Member] Customer D [Member]	Jun. 30, 2011 Maximum [Member] Customer D [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	20.00%	11.00%	11.00%	20.00%	11.00%	10.00%	10.00%	10.00%	10.00%	10.00%	10.00%	10.00%