ALLOWANCE FOR LOAN AND LEASE LOSSES AND CREDIT QUALITY INFORMATION - Schedule of Loans Identified as Troubled Debt Restructurings During Periods Indicated (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans identified during the period	$ 1,253	$ 1,001
Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans identified during the period	226	102
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans identified during the period	247	868
Commercial and industrial | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans identified during the period	20	0
Owner-occupied commercial | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans identified during the period	650	0
Commercial mortgages | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans identified during the period	110	31
Construction | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans identified during the period	$ 0	$ 0