Note 4 - Income Taxes (Detail) In Millions, unless otherwise specified	6 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2012 AUD	Dec. 31, 2012 GBP (£)	Dec. 31, 2012 United States of America USD ($)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%	35.00%	35.00%
Operating Loss Carryforwards				$ 180
Deferred Tax Assets, Tax Credit Carryforwards, Research	13
Deferred Tax Assets, Tax Credit Carryforwards	11.3
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	0.9
Deferred Tax Assets, Operating Loss Carryforwards (in Pounds and Dollars)		59	19
Unrecognized Tax Benefits	$ 2.5