v3.23.1

INCOME TAXES - Additional Information (Details) $ in Thousands, $ in Millions	12 Months Ended								36 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2022 HKD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2020
Income Taxes
Assessable profit to determine applicable tax rate		$ 2.0
Income tax rate	25.00%	25.00%	25.00%	25.00%
Operating loss carryforwards	$ 57,172
Income tax examination, penalties and interest expense					$ 4,324		$ 1,660	$ 2,664
Sale of equity interest, percentage								75.00%
Unrecognised tax benefit	0				$ 11,065
Unrecognised tax benefit on interest	0		$ 0	$ 0
Valuation allowance	68,427		56,486
Increased in net valuation allowance	11,941
Changes in valuation allowance	$ (4,326)		$ (763)	$ 10,282
Singapore
Income Taxes
Income tax rate	17.00%	17.00%
Minimum
Income Taxes
Assessable profit to determine applicable tax rate		$ 2.0
PRC Enterprise Income Tax
Income Taxes
Income tax rate	25.00%	25.00%
PRC Enterprise Income Tax | Wangfan Linghang Mobile Network Technology Co., Ltd. ("Linghang")
Income Taxes
Preferential tax rate						15.00%			25.00%
PRC Enterprise Income Tax | Air Esurfing Information Technology Co., Ltd. ("Air Esurfing")
Income Taxes
Preferential tax rate	25.00%	25.00%			15.00%
Inland Revenue, Hong Kong | Corporate Entity | Maximum
Income Taxes
Income tax rate	16.50%	16.50%
Inland Revenue, Hong Kong | Corporate Entity | Minimum
Income Taxes
Income tax rate	8.25%	8.25%
Inland Revenue, Hong Kong | Non Corporate Entity | Maximum
Income Taxes
Income tax rate	15.00%	15.00%
Inland Revenue, Hong Kong | Non Corporate Entity | Minimum
Income Taxes
Income tax rate	7.50%	7.50%

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