Note 8 - Credit Quality of Financing Receivables (Details) $ in Millions	Jul. 31, 2015 USD ($)
Finance Leases Portfolio Segment [Member] \| Subsequent Event [Member]
Note 8 - Credit Quality of Financing Receivables (Details) [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	$ 2.7

Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524

Name:	us-gaap_LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant