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Note 11 - Common Stock Options (Detail) - Change in the Number of Options and Related Weighted Average Price (USD $)	Dec. 31, 2012
Options outstanding at beginning and end of year	24,049
Options outstanding at beginning and end of year (in Dollars per share)	$ 34.80
Options exercisable at year-end	24,049
Options exercisable at year-end (in Dollars per share)	$ 34.80

- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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