LOANS - Composition of Net Loans Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 1,686,432	$ 1,630,112
Unearned net loan origination fees	(1,294)	(1,266)
Allowance for loan losses	(10,867)	(10,267)
Net loans receivable	1,674,271	1,618,579
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	133,654	124,937
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	114,734	125,291
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	1,056,745	995,220
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	379,396	382,567
Consumer and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 1,903	$ 2,097