INTEREST-BEARING DEPOSITS AND SECURITIES (Held-to-maturity Securities) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Schedule of Held-to-maturity Securities [Line Items]
Document Period End Date	Jun. 30, 2013
Amortized Cost	$ 94,336	$ 86,452
Gross Unrealized Gains	3,484	6,193
Gross Unrealized Losses	(1,263)	(187)
Fair Value	96,557	92,458
Percent of Total	100.00%	100.00%
US Government and Government Agencies and Authorities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	1,205
Gross Unrealized Gains	0
Gross Unrealized Losses	(48)
Fair Value	1,157
Percent of Total	1.20%
Taxable municipal bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	10,959	10,326
Gross Unrealized Gains	296	436
Gross Unrealized Losses	(141)	(157)
Fair Value	11,114	10,605
Percent of Total	11.50%	11.50%
Tax exempt municipal bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	80,122	74,076
Gross Unrealized Gains	3,188	5,757
Gross Unrealized Losses	(1,074)	(30)
Fair Value	82,236	79,803
Percent of Total	85.20%	86.30%
Total municipal bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	91,081	84,402
Gross Unrealized Gains	3,484	6,193
Gross Unrealized Losses	(1,215)	(187)
Fair Value	93,350	90,408
Percent of Total	96.70%	97.80%
Corporate bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	2,050	2,050
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 2,050	$ 2,050
Percent of Total	2.10%	2.20%