FAIR VALUE (Details 2) (USD $)	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Non-covered impaired loans
Non-covered OREO	$ 46,300,000
Covered OREO	55,600,000
FDIC percentage of reimbursement under shared loss agreements	80.00%
Percentage of company's liability for losses under shared loss agreements	20.00%		20.00%
Company's liability for losses under shared loss agreements	1,300,000		1,300,000
Total eligible losses subject to shared loss agreements	6,400,000		6,300,000
Fair Value, Measurements, Nonrecurring | Fair Value Measurements
Non-covered impaired loans
Total residential	5,564,000		3,025,000
Total commercial real estate	21,073,000		35,837,000
Total commercial and industrial	3,316,000		4,997,000
Total consumer	7,000		1,114,000
Total non-covered impaired loans	29,960,000		44,973,000
Non-covered OREO	8,195,000		6,622,000
Covered OREO	25,585,000	[1]	45,877,000	[1]
Loans Held for Sale	4,600,000		537,000
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2)
Non-covered impaired loans
Total residential	5,564,000		3,025,000
Total commercial real estate	21,073,000		35,837,000
Total consumer	7,000		1,114,000
Total non-covered impaired loans	26,644,000		39,976,000
Non-covered OREO	8,195,000		6,622,000
Covered OREO	25,585,000	[1]	45,877,000	[1]
Loans Held for Sale	4,600,000		537,000
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Non-covered impaired loans
Total commercial and industrial	3,316,000		4,997,000
Total non-covered impaired loans	3,316,000		4,997,000
Fair Value, Measurements, Nonrecurring | Total Gains (Losses)
Non-covered impaired loans
Total residential	(1,903,000)		(1,114,000)
Total commercial real estate	(1,343,000)		(8,497,000)
Total commercial and industrial	(984,000)		(11,722,000)
Total consumer	(57,000)		(799,000)
Total non-covered impaired loans	(4,287,000)		(22,132,000)
Non-covered OREO	(855,000)		(1,052,000)
Covered OREO	(6,449,000)	[1]	(6,255,000)	[1]
Loans Held for Sale	$ (4,730,000)		$ (959,000)

[1] Covered OREO results from the WFIB and UCB FDIC-assisted acquisitions for which the Company entered into shared-loss agreements with the FDIC whereby the FDIC will reimburse the Company for 80% of eligible losses. As such, the Company's liability for losses is 20% of the $6.4 million in losses, or $1.3 million, and 20% of the $6.3 million in losses, or $1.3 million, for the three months ended March 31, 2012 and 2011, respectively.