Note 6 - Inventories (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Inventory Disclosure [Abstract]
LIFO Inventory Amount	$ 12.9	$ 19.7
Inventory Difference Using FIFO Basis	30.8	27.5
Increase in Cost of Sales Using LIFO compared to FIFO	3.3	1.3	1.0
Effect of LIFO Inventory Liquidation on Income	$ 0.8