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, 2019	Mar. 31, 2018
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	$ 8,775	$ 7,335
Charge-offs	(168)	(34)
Recoveries	12	19
Provision	571	508
Ending balance	9,190	7,828
Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	603	208
Charge-offs	(45)	(11)
Recoveries	1	1
Provision	88	191
Ending balance	647	389
Construction
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	663	336
Charge-offs	0	0
Recoveries	0	0
Provision	(304)	9
Ending balance	359	345
Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	5,575	5,185
Charge-offs	(5)	0
Recoveries	1	1
Provision	733	615
Ending balance	6,304	5,801
Residential Real Estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	1,371	1,032
Charge-offs	(93)	(12)
Recoveries	7	10
Provision	64	(58)
Ending balance	1,349	972
Consumer and Other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	23	26
Charge-offs	(25)	(11)
Recoveries	3	7
Provision	18	9
Ending balance	19	31
Unallocated
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	540	548
Charge-offs	0	0
Recoveries	0	0
Provision	(28)	(258)
Ending balance	$ 512	$ 290

A valuation allowance for financing receivables that are expected to be uncollectible.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

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- Details

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