Note 4 - Fair Value Measurements (Details) - Assets and liabilities carried at fair value as measured on a recurring basis (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Note 4 - Fair Value Measurements (Details) - Assets and liabilities carried at fair value as measured on a recurring basis [Line Items]
Carrying value	$ 5,693	$ 188
Fair Value, Inputs, Level 1 [Member]
Note 4 - Fair Value Measurements (Details) - Assets and liabilities carried at fair value as measured on a recurring basis [Line Items]
Fair value	$ 5,693	$ 188

Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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