Consolidated Statements of Equity (Parenthetical) (USD $) In Thousands, except Share data	6 Months Ended
Jun. 30, 2011
Consolidated Statement of Equity (Parenthetical)
Unrealized holding gain on investments, tax	$ 52
Reclassification adjustment for gain reported in income, tax	$ 39
Sale of stock, shares	299,441
Repurchase of stock, shares	44,014
Equity compensation plan, shares	14,716
Exercise of stock options, shares	357,703

Tax effect on the reclassification adjustment for gains or losses realized upon the sale of securities during the period.

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Tax effect on gross appreciation or the gross loss in value of the total of unsold securities during the period being reported on.

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- Definition

Number of new stock issued during the period.

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- Definition

Number of share options (or share units) exercised during the current period.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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