FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK (Details) (USD $) In Thousands, unless otherwise specified									3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Undisbursed Loan Commitments [Member]	Dec. 31, 2012 Undisbursed Loan Commitments [Member]	Mar. 31, 2013 Commitments to Sell Loans [Member]	Dec. 31, 2012 Commitments to Sell Loans [Member]	Mar. 31, 2013 Standby Letters of Credit [Member]	Dec. 31, 2012 Standby Letters of Credit [Member]	Mar. 31, 2013 Performance Standby Letters of Credit [Member]	Mar. 31, 2013 Derivative [Member]	Mar. 31, 2013 Reserve for Off-balance Sheet Activity [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet credit risks	$ 172,998	$ 169,185	$ 168,107	$ 159,329	$ 2,450	$ 7,480	$ 2,441	$ 2,376	$ 2,441,000	$ 0	$ 793,000
Expiration year of guarantees									2013