ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY OF FINANCING RECEIVABLES - Changes In The Allowance For Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 10,267	$ 8,775
Charge-offs	(353)	(168)
Recoveries	74	12
Provision	879	571
Ending balance	10,867	9,190
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,175	603
Charge-offs	(343)	(45)
Recoveries	46	1
Provision	42	88
Ending balance	920	647
Construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	537	663
Charge-offs	0	0
Recoveries	0	0
Provision	343	(304)
Ending balance	880	359
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	6,717	5,575
Charge-offs	0	(5)
Recoveries	0	1
Provision	624	733
Ending balance	7,341	6,304
Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,338	1,371
Charge-offs	0	(93)
Recoveries	25	7
Provision	119	64
Ending balance	1,482	1,349
Consumer and Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	9	23
Charge-offs	(10)	(25)
Recoveries	3	3
Provision	10	18
Ending balance	12	19
Unallocated
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	491	540
Charge-offs	0	0
Recoveries	0	0
Provision	(259)	(28)
Ending balance	$ 232	$ 512