ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Loans By Class Modified As Troubled Debt Restructuring) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) Number	Dec. 31, 2016 USD ($) Number	Dec. 31, 2015 USD ($) Number
Modified Repayment Terms [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans	8	8	3
Modified Repayment Terms [Member] | Minimum [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Extension period for modified repayment terms	0 months	9 months	6 months
Modified Repayment Terms [Member] | Maximum [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Extension period for modified repayment terms	350 months	356 months	208 months
All Modifications [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans | Number	8	9	6
Pre-Modification Outstanding Recorded Investment	$ 3,852	$ 2,559	$ 2,267
Post-Modification Outstanding Recorded Investment	$ 3,854	$ 2,619	$ 2,267
Commercial and Industrial Loans [Member] | Working Capital Lines Of Credit Loans [Member] | Modified Repayment Terms [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans | Number	1
Extension period for modified repayment terms	9 months
Commercial and Industrial Loans [Member] | Working Capital Lines Of Credit Loans [Member] | All Modifications [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans | Number	1		2
Pre-Modification Outstanding Recorded Investment	$ 1,324		$ 564
Post-Modification Outstanding Recorded Investment	$ 1,324		$ 564
Commercial and Industrial Loans [Member] | Non Working Capital Loans [Member] | Modified Repayment Terms [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans	4	5	1
Extension period for modified repayment terms			12 months
Commercial and Industrial Loans [Member] | Non Working Capital Loans [Member] | Modified Repayment Terms [Member] | Minimum [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Extension period for modified repayment terms	0 months	9 months
Commercial and Industrial Loans [Member] | Non Working Capital Loans [Member] | Modified Repayment Terms [Member] | Maximum [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Extension period for modified repayment terms	6 months	356 months
Commercial and Industrial Loans [Member] | Non Working Capital Loans [Member] | All Modifications [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans | Number	4	6	1
Pre-Modification Outstanding Recorded Investment	$ 1,922	$ 1,841	$ 783
Post-Modification Outstanding Recorded Investment	$ 1,922	$ 1,902	$ 783
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member] | Modified Repayment Terms [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans	1	3	1
Extension period for modified repayment terms	6 months		6 months
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member] | Modified Repayment Terms [Member] | Minimum [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Extension period for modified repayment terms		13 months
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member] | Modified Repayment Terms [Member] | Maximum [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Extension period for modified repayment terms		24 months
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member] | All Modifications [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans	1	3	2
Pre-Modification Outstanding Recorded Investment	$ 486	$ 718	$ 855
Post-Modification Outstanding Recorded Investment	$ 486	$ 717	$ 855
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | Modified Repayment Terms [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans | Number	2		1
Extension period for modified repayment terms			208 months
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | Modified Repayment Terms [Member] | Minimum [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Extension period for modified repayment terms	198 months
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | Modified Repayment Terms [Member] | Maximum [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Extension period for modified repayment terms	350 months
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | All Modifications [Member]
Troubled Debt Restructurings Modified During Period [Abstract]
Number of Loans | Number	2		1
Pre-Modification Outstanding Recorded Investment	$ 120		$ 65
Post-Modification Outstanding Recorded Investment	$ 122		$ 65