Education, Research And Settlement Charge (Details) (USD $)	12 Months Ended
	Jun. 30, 2013 item
Education, Research And Settlement Charge [Abstract]
Payment to Sydney University	$ 24,765,000
Payment towards perpetual academic chairs	9,900,000
Number of perpetual academic chairs	2
Payment to support research	4,900,000
Payment to support research, period of equal installments	5 years
Payment of settlement to Sydney University	10,000,000
Release from the proceedings	1,250,000
Settlement for previously unpaid royalties	$ 8,750,000