LOANS AND LEASES - Restructured Loans (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($) loans	Jun. 30, 2015 USD ($) loans	Jun. 30, 2016 USD ($) loans d	Jun. 30, 2015 USD ($) loans	Dec. 31, 2015 USD ($) loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reclassification from/(to) non-accretable difference	$ 3,402,000	$ (548,000)	$ 3,720,000	$ (2,124,000)
Extended Maturities	35,000	1,180,000	521,000	10,661,000
Adjusted Interest Rates	0	0	0	0
Combined Rate And Maturity	0	1,157,000	162,000	1,219,000
Forebearance Agreements	88,000	260,000	88,000	260,000
Other	954,000	2,693,000	2,837,000	3,016,000
Total	$ 1,077,000	$ 5,290,000	$ 3,608,000	$ 15,156,000
Restructured loans, Number of Loans | loans	12	39	29	54
Restructured loans, Restructured loans, Pre-Modification Loan Balance	$ 1,514,000	$ 5,872,000	$ 4,077,000	$ 19,313,000
Restructured loans, Period End Balance	$ 1,077,000	$ 5,290,000	$ 3,608,000	$ 15,156,000
Restructured loans with payment default within 12 months of modification, Number of Loans | loans	0	1	4	5
Restructured loans with payment default within 12 months of modification, Period End Balance		$ 200,000	$ 300,000	$ 1,200,000
Number of Restructured Loans | loans	261		261		271
Total restructured loans	$ 36,000,000		$ 36,000,000		$ 38,200,000
Restructured loans on accrual status	28,022,000		28,022,000		28,876,000
Restructured Loans, Nonaccrual Status	8,000,000		8,000,000		9,300,000
Loans and Leases Receivable, Impaired, Commitment to Lend	600,000		600,000		1,800,000
Allowance for loan and lease losses lncluded in reserves for restructured loans	2,000,000		2,000,000		6,300,000
Restructured loans uncollectible portion written off	300,000	$ 1,700,000	500,000	$ 1,700,000
Accruing TDRs performing in accordance with restructured terms for more than one year	$ 14,500,000		$ 14,500,000		$ 10,300,000
Restructured loans performance threshold (days) | d			90
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans | loans	2	14	10	22
Restructured loans, Restructured loans, Pre-Modification Loan Balance	$ 44,000	$ 1,155,000	$ 2,127,000	$ 1,515,000
Restructured loans, Period End Balance	$ 35,000	$ 1,151,000	$ 2,130,000	$ 1,510,000
Real estate - construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans | loans	0	0	0	0
Restructured loans, Restructured loans, Pre-Modification Loan Balance	$ 0	$ 0	$ 0	$ 0
Restructured loans, Period End Balance	$ 0	$ 0	$ 0	$ 0
Real estate - commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans | loans	9	6	10	12
Restructured loans, Restructured loans, Pre-Modification Loan Balance	$ 1,468,000	$ 2,426,000	$ 1,510,000	$ 15,340,000
Restructured loans, Period End Balance	$ 1,040,000	$ 2,391,000	$ 1,082,000	$ 11,734,000
Residential - real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans | loans	0	3	2	3
Restructured loans, Restructured loans, Pre-Modification Loan Balance	$ 0	$ 362,000	$ 282,000	$ 362,000
Restructured loans, Period End Balance	$ 0	$ 327,000	$ 247,000	$ 327,000
Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans | loans	0	9	4	10
Restructured loans, Restructured loans, Pre-Modification Loan Balance	$ 0	$ 1,883,000	$ 149,000	$ 2,050,000
Restructured loans, Period End Balance	$ 0	$ 1,375,000	$ 140,000	$ 1,539,000
Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured loans, Number of Loans | loans	1	7	3	7
Restructured loans, Restructured loans, Pre-Modification Loan Balance	$ 2,000	$ 46,000	$ 9,000	$ 46,000
Restructured loans, Period End Balance	$ 2,000	$ 46,000	9,000	$ 46,000
Non Covered Loans | Residential - real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restructured Loans, Loan Relationships, Review Threshold Amount Minimum			$ 100,000