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Note 6 - Stock Plans and Non-Qualified Option Agreement (Details) (USD $) | Jun. 30, 2014 | Jun. 30, 2013
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Note 6 - Stock Plans and Non-Qualified Option Agreement (Details) [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ 9.85 | [1] | $ 10.23 | [2]
Minimum [Member] |  |  |  |
Note 6 - Stock Plans and Non-Qualified Option Agreement (Details) [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ 2.79 |  | $ 5.50 |
Maximum [Member] |  |  |  |
Note 6 - Stock Plans and Non-Qualified Option Agreement (Details) [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ 14.75 |  | $ 14.75 |
[1] | Options with exercise prices ranging from $2.79 to $14.75
[2] | Options with exercise prices ranging from $5.50 to $14.75

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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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