Note 7 - Liabilities Related to Sale of Future Royalties (Tables)

3 Months Ended

12 Months Ended

Sep. 30, 2017

Jun. 30, 2017

Notes Tables

Deferred Revenue, by Arrangement, Disclosure [Table Text Block]

	in millions
Total Liability related to sale of future royalties, June 30, 2017	$	16.7
Non-cash royalty revenue paid to HCRP		(0.2	)
Non-cash interest expense recognized		0.4
Total Liability related to sale of future royalties, September 30, 2017	$	16.9

	in millions
Total Liability related to sale of future royalties, June 30, 2016	$	18.1
Non-cash royalty revenue paid to HCRP		(3.2	)
Non-cash interest expense recognized		1.8
Total Liability related to sale of future royalties, June 30, 201 7	$	16.7