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COMMITMENTS AND CONTINGENCIES (Details) - Securities Lawsuits	1 Months Ended
	Apr. 30, 2017 USD ($)	Dec. 31, 2017 lawsuit case
COMMITMENTS AND CONTINGENCIES
Number of purported class action lawsuits that have been filed | lawsuit		2
Number of cases that have been filed | case		3
Settlement amount paid by entity to settlement escrow account	$ 250,000
Settlement amount paid by insurance providers to settlement escrow account	$ 6,000,000

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- Definition

Litigation settlement payment to escrow account by insurance providers.

+ References

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- Definition

The number of class action lawsuits that have been filed.

+ References

No definition available.

+ Details

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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.

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- Definition

Number of pending claims pertaining to a loss contingency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

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- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585

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