Note 13 - Common Stock (Detail) - Information relates to outstanding options (USD $)	12 Months Ended
Jun. 30, 2012
Weighted average remaining life (yr.s)	1 year 36 days
Year 2010 [Member]
Weighted average fair value on grant date of options granted in:
Weighted average fair value on grant date	4.59
Year 2011 [Member]
Weighted average fair value on grant date of options granted in:
Weighted average fair value on grant date	3.01
Year 2012 [Member]
Weighted average fair value on grant date of options granted in:
Weighted average fair value on grant date	3.32

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph c(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Period Type:	duration