LOANS AND LEASES - Nonaccrual, Restructured and Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Average current balance	$ 51,218	$ 62,171	$ 53,103	$ 62,912
Nonaccrual loans	22,277		22,277		$ 27,997
Accruing trouble debt restructurings	28,022		28,022		28,876
Total impaired loans	50,299		50,299		56,873
Restructured loans - nonaccrual status	8,000		8,000		9,300
Interest income effect
Gross amount of interest that would have been recorded under original terms	714	931	1,468	1,898
Interest included in income
Nonaccrual loans	96	108	172	279
Troubled debt restructurings	209	136	441	268
Total interest included in income	305	244	613	547
Net impact on interest income	409	687	855	1,351
Commercial
Financing Receivable, Modifications [Line Items]
Average current balance	14,086	10,557	15,194	10,374
Nonaccrual loans	2,980		2,980		8,405
Total impaired loans	13,687		13,687		17,411
Interest included in income
Total interest included in income	84	68	167	116
Real estate - construction
Financing Receivable, Modifications [Line Items]
Average current balance	0	223	0	223
Nonaccrual loans	0		0		0
Total impaired loans	0		0		0
Interest included in income
Total interest included in income	0	0	0	0
Real estate - commercial
Financing Receivable, Modifications [Line Items]
Average current balance	21,958	35,621	22,856	35,656
Nonaccrual loans	8,750		8,750		9,418
Total impaired loans	20,938		20,938		24,652
Interest included in income
Total interest included in income	131	100	278	277
Residential - real estate
Financing Receivable, Modifications [Line Items]
Average current balance	8,875	9,807	8,915	10,398
Nonaccrual loans	4,824		4,824		5,027
Total impaired loans	9,087		9,087		8,994
Interest included in income
Total interest included in income	57	54	112	110
Installment
Financing Receivable, Modifications [Line Items]
Average current balance	378	353	336	406
Nonaccrual loans	433		433		127
Total impaired loans	536		536		253
Interest included in income
Total interest included in income	2	2	3	4
Home equity
Financing Receivable, Modifications [Line Items]
Average current balance	5,277	5,610	5,332	5,855
Nonaccrual loans	4,123		4,123		4,898
Total impaired loans	4,884		4,884		5,441
Interest included in income
Total interest included in income	22	20	44	40
Other
Financing Receivable, Modifications [Line Items]
Average current balance	644	0	470	0
Nonaccrual loans	1,167		1,167		122
Total impaired loans	1,167		1,167		$ 122
Interest included in income
Total interest included in income	$ 9	$ 0	$ 9	$ 0