Consolidated Statement of Changes in Stockholders' Equity (Unaudite) (Parentheticals) (USD $)	3 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011
Shares of common stock issued as a result of stock purchased under the Employee Stock Purchase Plan	10,856	7,767	11,355	9,081
Shares of common stock issued as a result of stock options exercised	9,090	276	10,967	24,300
Shares of common stock exchanged	611	(576)	379	2,171
Common cash dividends per share (in Dollars per share)	$ 0.04		$ 0.04
Shares of Noncumulative Perpetual Preferred Stock redeemed	10,223
Shares of common stock issued in conjunction with the issuance of Series A Subordinated Notes	4,300