LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Details 15)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) item	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) item
Troubled Debt Restructurings disclosures
Number of Loans | item			352		378
Recorded Investment			$ 56,352,000		$ 65,266,000
Specific reserve allocations made to customers whose loan terms were modified in TDRs during period			$ 75,000	$ 142,000
Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans | item			307		324
Recorded Investment			$ 35,390,000		$ 39,132,000
Residential Real Estate | Interest only payments
Troubled Debt Restructurings disclosures
Number of Loans | item			2		6
Recorded Investment			$ 635,000		$ 607,000
Residential Real Estate | Rate reduction
Troubled Debt Restructurings disclosures
Number of Loans | item			227		234
Recorded Investment			$ 30,310,000		$ 32,456,000
Residential Real Estate | Principal deferral
Troubled Debt Restructurings disclosures
Number of Loans | item			16		17
Recorded Investment			$ 1,583,000		$ 1,757,000
Residential Real Estate | Legal modifications
Troubled Debt Restructurings disclosures
Number of Loans | item			62		67
Recorded Investment			$ 2,862,000		$ 4,312,000
Commercial Real Estate and Commercial Construction
Troubled Debt Restructurings disclosures
Number of Loans | item			45		54
Recorded Investment			$ 20,962,000		$ 26,134,000
Commercial Real Estate and Commercial Construction | Interest only payments
Troubled Debt Restructurings disclosures
Number of Loans | item			7
Recorded Investment			$ 2,038,000
Commercial Real Estate and Commercial Construction | Rate reduction
Troubled Debt Restructurings disclosures
Number of Loans | item			16		12
Recorded Investment			$ 8,971,000		$ 5,096,000
Commercial Real Estate and Commercial Construction | Principal deferral
Troubled Debt Restructurings disclosures
Number of Loans | item			22		22
Recorded Investment			$ 9,953,000		$ 10,958,000
Commercial Real Estate and Commercial Construction | Legal modifications
Troubled Debt Restructurings disclosures
Number of Loans | item					20
Recorded Investment					$ 10,080,000
Performing Financing Receivable
Troubled Debt Restructurings disclosures
Number of Loans | item			260		263
Recorded Investment			$ 41,294,000		$ 48,414,000
Percentage of troubled debt restructurings performing as per terms of modifications during the period.	16.00%	81.00%	73.00%		74.00%
Specific reserve allocations made to customers	$ 9,000	$ 54,000	$ 5,000,000		$ 4,000,000
Percentage of Bank's TDRs that occurred during period, which were performing according to their modified terms			55.00%	62.00%
Performing Financing Receivable | Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans | item			230		220
Recorded Investment			$ 27,611,000		$ 29,381,000
Performing Financing Receivable | Residential Real Estate | Interest only payments
Troubled Debt Restructurings disclosures
Number of Loans | item			2		2
Recorded Investment			$ 635,000		$ 218,000
Performing Financing Receivable | Residential Real Estate | Rate reduction
Troubled Debt Restructurings disclosures
Number of Loans | item			185		173
Recorded Investment			$ 24,653,000		$ 25,080,000
Performing Financing Receivable | Residential Real Estate | Principal deferral
Troubled Debt Restructurings disclosures
Number of Loans | item			10		12
Recorded Investment			$ 833,000		$ 1,408,000
Performing Financing Receivable | Residential Real Estate | Legal modifications
Troubled Debt Restructurings disclosures
Number of Loans | item			33		33
Recorded Investment			$ 1,490,000		$ 2,675,000
Performing Financing Receivable | Commercial Real Estate and Commercial Construction
Troubled Debt Restructurings disclosures
Number of Loans | item			30		43
Recorded Investment			$ 13,683,000		$ 19,033,000
Performing Financing Receivable | Commercial Real Estate and Commercial Construction | Interest only payments
Troubled Debt Restructurings disclosures
Number of Loans | item			6
Recorded Investment			$ 1,542,000
Performing Financing Receivable | Commercial Real Estate and Commercial Construction | Rate reduction
Troubled Debt Restructurings disclosures
Number of Loans | item			11		10
Recorded Investment			$ 6,605,000		$ 4,170,000
Performing Financing Receivable | Commercial Real Estate and Commercial Construction | Principal deferral
Troubled Debt Restructurings disclosures
Number of Loans | item			13		19
Recorded Investment			$ 5,536,000		$ 9,043,000
Performing Financing Receivable | Commercial Real Estate and Commercial Construction | Legal modifications
Troubled Debt Restructurings disclosures
Number of Loans | item					14
Recorded Investment					$ 5,820,000
Nonperforming Financing Receivable
Troubled Debt Restructurings disclosures
Number of Loans | item			92		115
Recorded Investment			$ 15,058,000		$ 16,852,000
Nonperforming Financing Receivable | Residential Real Estate
Troubled Debt Restructurings disclosures
Number of Loans | item			77		104
Recorded Investment			$ 7,779,000		$ 9,751,000
Nonperforming Financing Receivable | Residential Real Estate | Interest only payments
Troubled Debt Restructurings disclosures
Number of Loans | item					4
Recorded Investment					$ 389,000
Nonperforming Financing Receivable | Residential Real Estate | Rate reduction
Troubled Debt Restructurings disclosures
Number of Loans | item			42		61
Recorded Investment			$ 5,657,000		$ 7,376,000
Nonperforming Financing Receivable | Residential Real Estate | Principal deferral
Troubled Debt Restructurings disclosures
Number of Loans | item			6		5
Recorded Investment			$ 750,000		$ 349,000
Nonperforming Financing Receivable | Residential Real Estate | Legal modifications
Troubled Debt Restructurings disclosures
Number of Loans | item			29		34
Recorded Investment			$ 1,372,000		$ 1,637,000
Nonperforming Financing Receivable | Commercial Real Estate and Commercial Construction
Troubled Debt Restructurings disclosures
Number of Loans | item			15		11
Recorded Investment			$ 7,279,000		$ 7,101,000
Nonperforming Financing Receivable | Commercial Real Estate and Commercial Construction | Interest only payments
Troubled Debt Restructurings disclosures
Number of Loans | item			1
Recorded Investment			$ 496,000
Nonperforming Financing Receivable | Commercial Real Estate and Commercial Construction | Rate reduction
Troubled Debt Restructurings disclosures
Number of Loans | item			5		2
Recorded Investment			$ 2,366,000		$ 926,000
Nonperforming Financing Receivable | Commercial Real Estate and Commercial Construction | Principal deferral
Troubled Debt Restructurings disclosures
Number of Loans | item			9		3
Recorded Investment			$ 4,417,000		$ 1,915,000
Nonperforming Financing Receivable | Commercial Real Estate and Commercial Construction | Legal modifications
Troubled Debt Restructurings disclosures
Number of Loans | item					6
Recorded Investment					$ 4,260,000