LOANS - Composition of Net Loans Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 1,630,112	$ 1,475,827
Unearned net loan origination fees	(1,266)	(1,052)
Allowance for loan losses	(10,267)	(8,775)
Net loans receivable	1,618,579	1,466,000
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	124,937	81,709
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	125,291	142,321
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	995,220	878,449
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	382,567	370,955
Consumer and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 2,097	$ 2,393