Note 6 - Inventories (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Inventory Disclosure [Abstract]
LIFO Inventory Amount	$ 14.1	$ 12.9
Inventory Difference Using FIFO Basis	27.3	30.8
Decrease in Cost of Sales Using LIFO compared to FIFO	3.5
Increase in Cost of Sales Using LIFO compared to FIFO		$ 3.3	$ 1.3