LOANS, ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Details 4) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013 loan	Dec. 31, 2012 loan
Age Analysis of Past Due Financing Receivables
Number of Loans 30-59 Days	209	310
Principal Balance 30-59 Days	$ 15,925	$ 14,109
Number of Loans 60-89 Days	60	72
Principal Balance 60-89 Days	3,498	5,450
Number of Loans 90 Days or More	161	149
Principal Balance 90 Days or More	21,116	17,295
Number of Loans Total Past Due	430	531
Principal Balance Total Past Due	40,539	36,854
Current	4,677,768	4,482,157
Total Financing Receivables	4,718,307	4,519,011
Recorded Investment >90 Days and Accruing	525	52
Commercial and Industrial [Member]
Age Analysis of Past Due Financing Receivables
Number of Loans 30-59 Days	9	14
Principal Balance 30-59 Days	743	1,305
Number of Loans 60-89 Days	6	7
Principal Balance 60-89 Days	327	336
Number of Loans 90 Days or More	20	23
Principal Balance 90 Days or More	3,763	1,875
Number of Loans Total Past Due	35	44
Principal Balance Total Past Due	4,833	3,516
Current	779,369	683,995
Total Financing Receivables	784,202	687,511
Recorded Investment >90 Days and Accruing
Commercial Real Estate [Member]
Age Analysis of Past Due Financing Receivables
Number of Loans 30-59 Days	21	19
Principal Balance 30-59 Days	8,643	5,028
Number of Loans 60-89 Days	2	8
Principal Balance 60-89 Days	356	2,316
Number of Loans 90 Days or More	30	31
Principal Balance 90 Days or More	8,155	6,054
Number of Loans Total Past Due	53	58
Principal Balance Total Past Due	17,154	13,398
Current	2,232,106	2,108,755
Total Financing Receivables	2,249,260	2,122,153
Recorded Investment >90 Days and Accruing
Commercial Construction [Member]
Age Analysis of Past Due Financing Receivables
Number of Loans 30-59 Days	1
Principal Balance 30-59 Days	847
Number of Loans 60-89 Days
Principal Balance 60-89 Days
Number of Loans 90 Days or More	1
Principal Balance 90 Days or More	100
Number of Loans Total Past Due	2
Principal Balance Total Past Due	947
Current	222,912	188,768
Total Financing Receivables	223,859	188,768
Recorded Investment >90 Days and Accruing
Small Business [Member]
Age Analysis of Past Due Financing Receivables
Number of Loans 30-59 Days	18	20
Principal Balance 30-59 Days	353	750
Number of Loans 60-89 Days	6	8
Principal Balance 60-89 Days	227	94
Number of Loans 90 Days or More	14	10
Principal Balance 90 Days or More	247	320
Number of Loans Total Past Due	38	38
Principal Balance Total Past Due	827	1,164
Current	76,413	77,430
Total Financing Receivables	77,240	78,594
Recorded Investment >90 Days and Accruing
Residential Real Estate [Member]
Age Analysis of Past Due Financing Receivables
Number of Loans 30-59 Days	23	17
Principal Balance 30-59 Days	2,903	3,053
Number of Loans 60-89 Days	8	7
Principal Balance 60-89 Days	1,630	1,848
Number of Loans 90 Days or More	39	40
Principal Balance 90 Days or More	6,648	7,501
Number of Loans Total Past Due	70	64
Principal Balance Total Past Due	11,181	12,402
Current	530,262	600,479
Total Financing Receivables	541,443	612,881
Recorded Investment >90 Days and Accruing	462
Home Equity [Member]
Age Analysis of Past Due Financing Receivables
Number of Loans 30-59 Days	27	32
Principal Balance 30-59 Days	1,922	2,756
Number of Loans 60-89 Days	8	10
Principal Balance 60-89 Days	852	632
Number of Loans 90 Days or More	23	17
Principal Balance 90 Days or More	2,055	1,392
Number of Loans Total Past Due	58	59
Principal Balance Total Past Due	4,829	4,780
Current	817,312	797,369
Total Financing Receivables	822,141	802,149
Recorded Investment >90 Days and Accruing
Consumer - Other [Member]
Age Analysis of Past Due Financing Receivables
Number of Loans 30-59 Days	110	208
Principal Balance 30-59 Days	514	1,217
Number of Loans 60-89 Days	30	32
Principal Balance 60-89 Days	106	224
Number of Loans 90 Days or More	34	28
Principal Balance 90 Days or More	148	153
Number of Loans Total Past Due	174	268
Principal Balance Total Past Due	768	1,594
Current	19,394	25,361
Total Financing Receivables	20,162	26,955
Recorded Investment >90 Days and Accruing	$ 63	$ 52