Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Parentheticals) (USD $)	3 Months Ended
	Jun. 30, 2012 Preferred Stock [Member]	Jun. 30, 2013 Common Stock [Member]	Mar. 31, 2013 Common Stock [Member]	Jun. 30, 2012 Common Stock [Member]	Mar. 31, 2012 Common Stock [Member]
Shares of common stock issued as a result of stock purchased under the Employee Stock Purchase Plan		9,560	5,884	10,856	7,767
Shares of common stock issued as a result of stock options exercised		3,769	19,278	9,090	276
Shares of common stock issued as a result of stock options exercised			(7,048)	(611)
Shares of common stock exchanged			(16,798)		(576)
Common cash dividends declared per share (in Dollars per share)		$ 0.04		$ 0.04
Shares of common stock issued as a result of the acquisition of Community National Bancorporation		834,715
Shares of Series F Noncumulative Perpetual Preferred Stock Redeemed	10,223
Shares of common stock issued in conjunction with the Series A Subordinated Notes from exercise of warrants				4,300