FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK (Interest Rate Swaps) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Derivative [Line Items]
Notional amount	$ 95,000
Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount	205,505	117,110
Weighted average pay rate	4.52%	4.66%
Weighted average receive rate	4.11%	3.85%
Weighted average maturity in years	7 years 10 months 24 days	7 years 8 months 12 days
Interest Rate Swap [Member] | Total loans [Member]
Derivative [Line Items]
Unrealized gain (loss)	3,300	3,559
Interest Rate Swap [Member] | Other assets [Member]
Derivative [Line Items]
Unrealized gain (loss)	5,053	2,108
Interest Rate Swap [Member] | Other liabilities [Member]
Derivative [Line Items]
Unrealized gain (loss)	$ (8,353)	$ (5,666)