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INCOME TAXES (Details 3) (USD $) | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009 | Dec. 31, 2010 Federal | Dec. 31, 2011 Federal | Dec. 31, 2011 State Y | Dec. 31, 2010 State | Dec. 31, 2007 State
Operating loss carryforwards |  |  |  |  |  |  |  |
Section 597 gain related to the UCB acquisition |  |  |  | $ 666,000,000 |  |  |  |
Net operating loss carryforwards |  |  |  | 3,300,000 | 3,000,000 | 312,300,000 | 321,100,000 |
Net operating loss from the acquisition of Desert Community Bank (DCB) in 2007 |  |  |  |  |  |  |  | 3,000,000
Carryforward period of net operating losses (in years) |  |  |  |  |  | 20 |  |
Activity related to unrecognized tax benefits |  |  |  |  |  |  |  |
Balance, beginning of year | 4,952,000 | 5,763,000 |  |  |  |  |  |
Additions for tax positions of prior years | 794,000 | 721,000 |  |  |  |  |  |
Reductions for tax positions of prior years | (3,208,000) | (288,000) |  |  |  |  |  |
Additions for tax positions of current year | 794,000 | 634,000 |  |  |  |  |  |
Settlements |  | (1,878,000) |  |  |  |  |  |
Balance, end of year | 3,332,000 | 4,952,000 |  |  |  |  |  |
Increase in unrecognized tax benefits reserve for the California enterprise zone net interest deduction | 1,600,000 |  |  |  |  |  |  |
Reduction in unrecognized tax benefits reserve for California enterprise zone, net interest deduction | 3,200,000 |  |  |  |  |  |  |
ASC 740-10 liability | 4,800,000 | 6,200,000 |  |  |  |  |  |
Total amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate | 2,200,000 | 3,000,000 |  |  |  |  |  |
Accrued interest and penalties expense for unrecognized tax positions | 287,000 | 796,000 | 1,150,000 |  |  |  |  |
Total interest and penalties accrued | $ 1,500,000 | $ 1,200,000 |  |  |  |  |  |

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