SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE (Schedule of Federal Home Loan Bank, Advances, by Branch of FHLB Bank) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Average daily balance during the year	$ 119,150	$ 134,814	$ 114,578
Average interest rate during the year	0.37%	0.42%	0.44%
Maximum month-end balance during the year	$ 130,389	$ 146,281	$ 142,015
Weighted average interest rate at year-end	0.35%	0.35%	0.42%