FAIR VALUE ACCOUNTING AND MEASUREMENT (Commitments) (Details) (USD $)	Mar. 31, 2013 commitment	Dec. 31, 2012 commitment
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of commitments to sell securities	3	0
Commitments to sell loans [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	30,844,000	70,263,000
Commitments to sell loans [Member] | Level 2 [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	31,000,000	70,000,000
Off-balance-sheet financial instruments, carrying value	234,000	328,000
Commitments to originate loans [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	21,363,000	10,733,000
Commitments to originate loans [Member] | Level 2 [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	71,000,000	89,000,000
Off-balance-sheet financial instruments, carrying value	286,000	362,000
Commitment to fund loans [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	1,000,000,000	925,000,000
Off-balance-sheet financial instruments, carrying value	0	0
Commitments to purchase securities [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	38,619,000	11,500,000
Number of commitments to purchase securities	16	1
Commitments to sell securities [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	4,860,000	0
Commitments to sell mortgage backed securities [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	34,047,000	41,500,000
Off-balance-sheet financial instruments, carrying value	(177,000)	(121,000)