Note 4 - Stock-Based Compensation (Details) - Stock Options Outstanding Weighted Average Fair Value (Employee Stock Purchase Plan ESPP [Member], USD $)	12 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Employee Stock Purchase Plan ESPP [Member]
Note 4 - Stock-Based Compensation (Details) - Stock Options Outstanding Weighted Average Fair Value [Line Items]
Weighted average remaining life (years)	1 year 109 days
Wеightеd avеragе fair valuе on grant datе of options grantеd	$ 3.37	$ 2.73	$ 3.32

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

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

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Period Type:	instant