CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Investment securities:
Held to maturity investments, fair value	$ 92,537	$ 113,197
Common stock:
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	100,600,000	100,600,000
Common stock, shares issued (in shares)	6,294,227
Treasury Stock (in shares)	600	0
Series C - Preferred Stock $1,000 par value [Member]
Preferred stock:
Preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, shares authorized (in shares)	39,435	39,435
Preferred stock, shares issued (in shares)	39,435	39,435