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STOCK BASED COMPENSATION PLANS - Allocation of Recognized Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 1,352	$ 1,298	$ 1,274
Stock options and restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	328	350	399
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	170	237	290
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 854	$ 711	$ 585

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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-SubTopic 10
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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+ References

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