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Taxation (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Schedule of loss before income taxes

		Years ended December 31,
(In thousands)		2020				2021				2022
Non-PRC			(54,627	)			(28,212	)			(15,397	)
PRC			(8,603	)			(17,872	)			(4,367	)
Total			(63,230	)			(46,084	)			(19,764	)

Schedule of reconciliations of the income tax expenses

		Years ended December 31,
(In thousands)		2020				2021				2022
Loss before income tax			(63,230	)			(46,084	)			(19,764	)
Income tax computed at statutory PRC income tax rate (25%)(i)			(15,808	)			(11,521	)			(4,941	)
Differential income tax rates applicable to certain entities comprising the Group			13,121				4,061				1,791
Effect of tax holiday			824				1,786				469
Permanent differences(ii)			451				1,826				2,100
Change in valuation allowance			2,735				5,405				1,569
Accelerated deductions on research and development expenses(iii)			(1,138	)			(1,313	)			(827	)
Income tax expenses			185				244				161

(i) The PRC statutory income tax rate was used because the majority of the Group’s operations are based in the PRC.

(ii) Permanent differences primarily represent non-deductible expenses.

(iii) This amount represents tax incentives relating to the research and development expenses of certain major operating subsidiaries in the PRC.

Schedule of per share effect of the tax holiday

		Years ended December 31,
(In thousands)		2020				2021				2022
Effect of tax holiday			824				1,786				469
Per share effect – basic and diluted			(0.00	)			(0.01	)			(0.00	)

Schedule of components of deferred tax assets

		Years ended December 31,
(In thousands)		2020				2021				2022
Deferred tax assets
Net operating loss carryforwards			9,416				14,808				19,814
Accrued expenses and others			414				427				(3,010	)
Less: valuation allowance			(9,830	)			(15,235	)			(16,804	)
Net deferred tax assets			—				—				—

Schedule of movement of valuation allowance

		Years ended December 31,
(In thousands)		2020				2021				2022
Balance at beginning of the year			7,095				9,830				15,235
Change of valuation allowance			2,735				5,405				1,569
Balance at end of the year			9,830				15,235				16,804

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Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of the income tax exemptions and reductions which have been granted by taxing authorities for a specified period, applicable term of the exemptions and reductions, estimated dollar value of tax benefits, and per share benefits.

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Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

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