Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Other real estate owned, covered (in Dollars)	$ 7,654	$ 6,646
Other real estate owned, noncovered (in Dollars)	$ 13,597	$ 18,427
Preferred stock, par value (in Dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in Shares)	5,000,000	5,000,000
Preferred stock, shares issued (in Shares)	20,500	20,500
Preferred stock, shares outdstanding (in Shares)	20,500	20,500
Common stock, par value (in Dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in Shares)	200,000,000	200,000,000
Common stock, shares outstanding (in Shares)	44,648,165	44,575,853
Common stock, shares issued (in Shares)	44,648,165	44,575,853