Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current Assets:
Securities available-for-sale at amortized cost	$ 336,349	$ 324,172
Accumulated amortization on core deposit intangible	$ 9,869	$ 8,789
Stockholders' Equity:
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	28,405	49,312
Preferred stock, shares outstanding	28,405	49,312
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	100,000,000	50,000,000
Common stock, shares issued	43,151,646	19,526,188
Common stock, shares outstanding	43,151,646	19,526,188