Note 2 - Stock-Based Compensation (Details) - Stock Option Activity (Stock Option Plan 1999 [Member], USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
Sep. 30, 2013
Stock Option Plan 1999 [Member]
Note 2 - Stock-Based Compensation (Details) - Stock Option Activity [Line Items]
Outstanding at January 1, 2013	69,000
Outstanding at January 1, 2013 (in Dollars per share)	$ 23.75
Outstanding September 30, 2013	69,000
Outstanding September 30, 2013 (in Dollars per share)	$ 23.75
Outstanding September 30, 2013	1 year 40 days
Outstanding September 30, 2013 (in Dollars)	$ 838
Exercisable at September 30, 2013	69,000
Exercisable at September 30, 2013 (in Dollars per share)	$ 23.75
Exercisable at September 30, 2013	1 year 40 days
Exercisable at September 30, 2013 (in Dollars)	$ 838

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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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.

+ 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

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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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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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

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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.

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