LOANS (covered) - Covered Loan Delinquency, Excluding Loans Accounted for Under FASB ASC Topic 310-30 (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	$ 687,798,000	$ 748,116,000
Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	70,858,000	73,959,000
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	90,424,000	102,126,000
Commercial | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	7,162,000	7,351,000
Real estate-commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	425,950,000	465,555,000
Real estate-commercial | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	6,773,000	7,489,000
Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	7,640,000	8,674,000
Installment | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	702,000	763,000
Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	55,021,000	57,458,000
Home equity | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	53,315,000	55,378,000
All other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	2,906,000	2,978,000
All other | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	2,906,000	2,978,000
Covered Loans | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 days past due	110,000	794,000
60 - 89 days past due	468,000	1,619,000
> 90 days past due	4,951,000	9,721,000
Total Past due	5,529,000	12,134,000
Current	65,329,000	61,825,000
Total	70,858,000	73,959,000
> 90 days past due and still accruing	28,000	31,000
Covered Loans | Commercial | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 days past due	0	351,000
60 - 89 days past due	33,000	148,000
> 90 days past due	2,022,000	3,781,000
Total Past due	2,055,000	4,280,000
Current	5,107,000	3,071,000
Total	7,162,000	7,351,000
> 90 days past due and still accruing	0	0
Covered Loans | Real estate-commercial | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 days past due	0	138,000
60 - 89 days past due	81,000	1,149,000
> 90 days past due	1,274,000	2,201,000
Total Past due	1,355,000	3,488,000
Current	5,418,000	4,001,000
Total	6,773,000	7,489,000
> 90 days past due and still accruing	0	0
Covered Loans | Installment | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 days past due	0	0
60 - 89 days past due	0	0
> 90 days past due	0	0
Total Past due	0	0
Current	702,000	763,000
Total	702,000	763,000
> 90 days past due and still accruing	0	0
Covered Loans | Home equity | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 days past due	99,000	286,000
60 - 89 days past due	343,000	296,000
> 90 days past due	1,614,000	3,697,000
Total Past due	2,056,000	4,279,000
Current	51,259,000	51,099,000
Total	53,315,000	55,378,000
> 90 days past due and still accruing	0	0
Covered Loans | All other | Loans Excluded from FASB ASC Topic 310-30
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 days past due	11,000	19,000
60 - 89 days past due	11,000	26,000
> 90 days past due	41,000	42,000
Total Past due	63,000	87,000
Current	2,843,000	2,891,000
Total	2,906,000	2,978,000
> 90 days past due and still accruing	$ 28,000	$ 31,000