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Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Shares issued using employee stock purchase plan	532	637
Shares issued using stock option exercises		2,900
Cash dividends per share	$ 0.10	$ 0.00
Common Stock
Shares issued using employee stock purchase plan	532	637
Shares issued using stock option exercises		2,900
Shares issued using dividend reinvestment plan	929
Cash dividends per share	$ 0.10

Number of shares issued during the period as a result of an employee stock purchase plan.

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