Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investment securities held to maturity, fair value (in Dollars)	$ 1,041,385	$ 1,112,676
Common Stock, Par Value (in Dollars per share)	$ 0	$ 0
Common Stock, Shares Authorized	150,000	150,000
Common Stock, Shares Issued	25,906	26,510
Common Stock, Shares Outstanding	25,906	26,510