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INCOME TAX (Details) $ in Millions		12 Months Ended
	Jan. 01, 2018 HKD ($) item	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
INCOME TAX
Income tax rate (as a percent)			25.00%	25.00%	25.00%
PRC
INCOME TAX
Income tax rate (as a percent)			25.00%
Hong Kong SAR
INCOME TAX
Income tax rate (as a percent)	16.50%		16.50%
Amount of first assessable profits earned will be taxed at half the current tax rate | $	$ 2
Tax rate for first HK$2 million of assessable profits earned	(8.25%)
Number of entities to be nominated and benefit from the progressive rates | item	1
Singapore
INCOME TAX
Income tax rate (as a percent)			17.00%
High and New Technology Enterprise | PRC
INCOME TAX
Income tax rate (as a percent)		15.00%	15.00%	15.00%

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The number of entities in the group to be nominated and benefit from the progressive rates.

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Percentage of preferential tax rate.

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The amount of assessable profits earned for preferential tax rate.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.Fact.4)
-URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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