LOANS (excluding covered loans) - Restructured Loans (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014 D loans	Mar. 31, 2013 loans	Dec. 31, 2013 loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured Loans, Nonaccrual Status	$ 14,600,000		$ 13,000,000
Non Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Extended Maturities	669,000		8,481,000
Adjusted Interest Rates	293,000		568,000
Combined Rate And Maturity	1,253,000		98,000
Forebearance Agreements	66,000		0
Other	429,000		2,250,000
Total	2,710,000		11,397,000
Number of Restructured Loans	231		217
Restructured loans, Number of Loans	27	63
Restructured loans, Restructured loans, Pre-Modification Loan Balance	2,725,000	11,472,000
Restructured loans, Period End Balance	2,710,000	11,397,000
Restructured loans with payment default within 12 months of modification, Number of Loans	3		7
Restructured loans with payment default within 12 months of modification, Period End Balance	168,000		346,000
Total restructured loans	28,000,000		28,100,000
Restructured loans on accrual status	13,400,000		15,094,000
Restructured Loans, Nonaccrual Status	14,600,000		13,000,000
Allowance for loan and lease losses lncluded in reserves for restructured loans	3,400,000		4,400,000
Restructured loans uncollectible portion written off	700,000		2,800,000
Accruing TDRs performing in accordance with restructured terms for more than one year	8,400,000		9,000,000
Restructured loans performance threshold (days)	90
Non Covered Loans | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans	3	6
Restructured loans, Restructured loans, Pre-Modification Loan Balance	73,000	7,568,000
Restructured loans, Period End Balance	73,000	7,561,000
Restructured loans with payment default within 12 months of modification, Number of Loans	1		2
Restructured loans with payment default within 12 months of modification, Period End Balance	143,000		85,000
Non Covered Loans | Real estate-construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans	0	0
Restructured loans, Restructured loans, Pre-Modification Loan Balance	0	0
Restructured loans, Period End Balance	0	0
Restructured loans with payment default within 12 months of modification, Number of Loans	0		0
Restructured loans with payment default within 12 months of modification, Period End Balance	0		0
Non Covered Loans | Real estate-commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans	6	4
Restructured loans, Restructured loans, Pre-Modification Loan Balance	1,857,000	1,592,000
Restructured loans, Period End Balance	1,849,000	1,588,000
Restructured loans with payment default within 12 months of modification, Number of Loans	0		1
Restructured loans with payment default within 12 months of modification, Period End Balance	0		72,000
Non Covered Loans | Real estate - residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans	9	21
Restructured loans, Restructured loans, Pre-Modification Loan Balance	545,000	1,373,000
Restructured loans, Period End Balance	539,000	1,320,000
Restructured loans with payment default within 12 months of modification, Number of Loans	0		2
Restructured loans with payment default within 12 months of modification, Period End Balance	0		119,000
Non Covered Loans | Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans	1	8
Restructured loans, Restructured loans, Pre-Modification Loan Balance	3,000	138,000
Restructured loans, Period End Balance	3,000	130,000
Restructured loans with payment default within 12 months of modification, Number of Loans	1		1
Restructured loans with payment default within 12 months of modification, Period End Balance	1,000		16,000
Non Covered Loans | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans	8	24
Restructured loans, Restructured loans, Pre-Modification Loan Balance	247,000	801,000
Restructured loans, Period End Balance	246,000	798,000
Restructured loans with payment default within 12 months of modification, Number of Loans	1		1
Restructured loans with payment default within 12 months of modification, Period End Balance	24,000		54,000
Non Covered Loans | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured Loans, Loan Relationships, Review Threshold Amount Minimum	$ 100,000