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ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Additional Information) (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Troubled Debt Restructuring [Abstract]      
Loans Modified In Troubled Debt Restructured Loans $ 2,900,000   $ 3,700,000
Loan amount of credit quality analysis 250,000    
Commercial and Industrial Loans [Member]      
Troubled Debt Restructuring [Abstract]      
Financing Receivable, Modifications, Recorded Investment 341,000,000,000    
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member]      
Troubled Debt Restructuring [Abstract]      
Financing Receivable, Modifications, Recorded Investment 551,000,000,000    
Commercial Real Estate and Multi-Family Residential Loans [Member]      
Troubled Debt Restructuring [Abstract]      
Increase (decrease) in allowance for loan loss   $ 227,000  
Financing Receivable, Modifications, Subsequent Default, Recorded Investment   $ 1,600,000  
commercial real estate building [Member]      
Troubled Debt Restructuring [Abstract]      
Financing Receivable, Modifications, Recorded Investment 533,000    
commercial and industrial nonworking capital [Member]      
Troubled Debt Restructuring [Abstract]      
Financing Receivable, Modifications, Recorded Investment $ 70,000