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LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Impaired Loans That Are TDRs (Detail) $ in Thousands	Dec. 31, 2016 USD ($) contract	Dec. 31, 2015 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	22	21
Recorded Investment | $	$ 1,971	$ 1,956
Accruing
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	9	8
Recorded Investment | $	$ 930	$ 793
Accruing | Residential mortgage | First lien
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	8	8
Recorded Investment | $	$ 896	$ 793
Accruing | Residential mortgage | Home equity - lines of credit
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1	0
Recorded Investment | $	$ 34	$ 0
Nonaccruing
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	13	13
Recorded Investment | $	$ 1,041	$ 1,163
Nonaccruing | Residential mortgage | First lien
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	12	12
Recorded Investment | $	$ 1,035	$ 1,153
Nonaccruing | Installment and other loans
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1	1
Recorded Investment | $	$ 6	$ 10

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- Definition

Financing Receivable Modified Balance End Of Period Number Of Contract

+ References

No definition available.

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- 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

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