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SHARE-BASED COMPENSATION PLANS - Schedule of Employee Stock Purchase Plan Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Shares purchased	8,214	56,885	25,834
Employee Stock Purchase Plan
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Shares purchased	5,907	6,632	6,334
Weighted average price of shares purchased (in dollars per share)	$ 23.04	$ 20.57	$ 16.64
Compensation expense recognized	$ 14	$ 17	$ 17
Tax benefits	$ 3	$ 6	$ 6

X

- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
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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.

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- Definition

Weighted average purchase price of capital shares purchased through an employee stock ownership plan.

+ References

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

+ References

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-Name Accounting Standards Codification
-Topic 505
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-Name Accounting Standards Codification
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- Definition

The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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