LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Recorded investment in non-accrual loans by class (Details) $ in Thousands		6 Months Ended	12 Months Ended
Jun. 30, 2017 loan	Jun. 30, 2018 USD ($) loan	Dec. 31, 2017 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		$ 1,835	$ 3,006
Number of loans classified as TDRs \| loan	0
Recorded investments		$ 1,800	1,800
1-4 Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans			$ 1,171
Number of loans classified as TDRs \| loan		1	1
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		$ 1,835	$ 1,835

Represents the number of loan classified as troubled debt restructuring.

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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

No definition available.

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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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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

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