Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Available-for-sale, Amortized Cost (in Dollars)	$ 383,419	$ 394,750
Held-to-maturity, fair value (in Dollars)	$ 163	$ 166
Common stock, par value (in Dollars per share)	$ 0.625	$ 0.625
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	3,418,128	3,392,572
Common stock, shares outstanding	3,253,559	3,228,003
Treasury stock, shares	164,569	164,569