COMMITMENTS AND CONTINGENCIES (Interst Rate Swap) (Details) (Interest rate swaps [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Derivative [Line Items]
Notional amount	$ 198,195	$ 117,110
Weighted average pay rate	4.55%	4.66%
Weighted average receive rate	4.07%	3.85%
Weighted average maturity in years	7 years 9 months 18 days	7 years 8 months 12 days
Total loans [Member]
Derivative [Line Items]
Unrealized gain (loss)	3,495	3,559
Other assets [Member]
Derivative [Line Items]
Unrealized gain (loss)	5,340	2,108
Other liabilities [Member]
Derivative [Line Items]
Unrealized gain (loss)	$ (8,834)	$ (5,666)