Note 6 - Components of Revenues from Royalties, Collaborative and Contractual Agreements (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Relenza [Member]
Royalty revenue – Relenza®	$ 1.0	$ 4.2	$ 2.7	$ 4.2
Inavir [Member]
Royalty revenue – Relenza®	0.7	2.3	0.7	2.3
Royalty revenue – Relenza®	$ 1.7	6.5	$ 3.4	6.5
Revenue from services		7.4		8.1
Total revenue	$ 1.7	$ 13.9	$ 3.4	$ 14.6