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LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Impaired Loans That Are TDRs (Detail) $ in Thousands	Dec. 31, 2018 USD ($) contract	Dec. 31, 2017 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	22	23
Recorded Investment | $	$ 1,827	$ 1,958
Accruing
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	13	13
Recorded Investment | $	$ 1,132	$ 1,183
Accruing | Commercial Real Estate | Owner-occupied
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1	1
Recorded Investment | $	$ 39	$ 52
Accruing | Residential mortgage | First lien
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	11	11
Recorded Investment | $	$ 1,069	$ 1,102
Accruing | Residential mortgage | Home equity - lines of credit
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1	1
Recorded Investment | $	$ 24	$ 29
Nonaccruing
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	9	10
Recorded Investment | $	$ 695	$ 775
Nonaccruing | Commercial Real Estate | Owner-occupied
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1	1
Recorded Investment | $	$ 37	$ 57
Nonaccruing | Residential mortgage | First lien
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	8	8
Recorded Investment | $	$ 658	$ 715
Nonaccruing | Installment and other loans
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	1
Recorded Investment | $	$ 0	$ 3

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554

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