Note 3 - Stock-based Compensation (Details) - Stock Option Activity By Exercise Price Range: (USD $)					3 Months Ended
Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2013 $9.96 - $12.49 [Member]	Sep. 30, 2013 16.00 - 16.00 [Member]	Sep. 30, 2013 $9.96 - $16.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit					$ 9.96	$ 16.00	$ 9.96
Range of Exercise Prices, Upper Limit					$ 12.49	$ 16.00	$ 16.00
Oustanding, Number Outstanding (in Shares)	22,697	22,697	22,697	26,240	12,697	10,000	22,697
Outstanding, Weighted Average Remaining Contractual Life (in years)					105 days	8 years 302 days	4 years 18 days
Outstanding, Weighted Average Exercise Price	$ 13.91	$ 13.91	$ 13.91	$ 12.19	$ 12.26	$ 16.00	$ 13.91
Exercisable, Number Exercisable (in Shares)	14,697		12,697		12,697	2,000	14,697
Exercisable, Weighted Averge Exercise Price					$ 12.26	$ 16.00	$ 12.77

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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

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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.

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Number of options outstanding, including both vested and non-vested options.

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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