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Note 2 - Stock-based Compensation (Detail) - Stock Option Activity (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Outstanding, January 1	88,774	89,077
Outstanding, January 1 (in Dollars per share)	$ 26.81	$ 27.87
Granted	0	9,000
Granted (in Dollars per share)	$ 0	$ 17.55
Exercised	0	0
Exercised (in Dollars per share)	$ 0	$ 0
Forfeited	(420)	(7,549)
Forfeited (in Dollars per share)	$ 36.86	$ 29.22
Outstanding, September 30	88,354	90,528
Outstanding, September 30 (in Dollars per share)	$ 26.76	$ 26.73
Exercisable, September 30	88,354	81,528
Exercisable, September 30 (in Dollars per share)	$ 26.76	$ 27.75

X

- Definition

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

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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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