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LEASES - Narrative (Details) - USD ($) $ in Thousands			3 Months Ended	12 Months Ended
	Jun. 14, 2019	Apr. 04, 2011	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 17, 2019
Leases
Impairment of right-of-use asset			$ 223	$ 223
Sublease income				72	$ 0	$ 0
Total lease cost				1,884
Period from July 26, 2019 to September 29, 2025
Leases
Free base rental period of the sublease	4 months 15 days
Period from December 10, 2019 to September 29, 2025
Leases
Monthly base sublease income	$ 102
Lease agreement entered into April 2011
Leases
Lease term		7 years
Obligation of sublessor towards the cost of alterations of office space		$ 472
Lease agreement entered into April 2011 | Period from October 1, 2018 to April 30, 2023
Leases
Monthly rental payment				186
Lease agreement entered into April 2011 | Period from May 1, 2023 to September 30, 2025
Leases
Monthly rental payment				$ 204
Sub Sublease Agreement | Period November 1, 2011 until May 31, 2015
Leases
Monthly rental payment		82
Sub Sublease Agreement | Period after May 31, 2015 until April 30, 2018
Leases
Monthly rental payment		$ 90
Lease Agreement entered into January 2019 | Singapore
Leases
Lease term							3 years

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- Definition

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+ References

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- Definition

Free base rental period upon commencement of the sublease.

+ References

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- Definition

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+ References

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- Definition

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+ References

No definition available.

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- Definition

Represents the obligation of sublessor towards the cost of alterations to the assets under the lease agreement.

+ References

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- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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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

Amount of sublease income excluding finance and operating lease expense.

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