Note 2 - Recent Accounting Pronouncements (Details Textual) (USD $) In Millions, unless otherwise specified	9 Months Ended
Mar. 31, 2015
Reduction in Deferred Tax Assets, Accounting Standards Update 2013-11 [Member]
Prior Period Reclassification Adjustment	$ 7.9
Reduction in Other Tax Obligations, Accounting Standards Update 2013-11 [Member]
Prior Period Reclassification Adjustment	$ 7.9

The amount of a reclassification adjustment made to prior period financial statement amounts.

No definition available.

Name:	us-gaap_PriorPeriodReclassificationAdjustment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration