CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF CONDITION [Abstract]
Held to maturity, fair value	$ 8,861	$ 10,161
Common Stock, par value (in dollars per share)	$ 2.50	$ 2.50
Common Stock, shares authorized (in shares)	15,000,000	15,000,000
Common Stock, Shares, Issued (in shares)	13,732,085	13,732,085
Common Stock, shares outstanding (in shares)	11,566,347	9,726,814
Treasury Stock, shares (in shares)	2,165,738	4,005,271