Note 1 - Financial Statement Presentation (Details) (USD $)	3 Months Ended	6 Months Ended
Sep. 30, 2013	Sep. 30, 2013
Accounting Policies [Abstract]
Prior Period Reclassification Adjustment	$ 281,000	$ 530,000

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