Amount of contract with customer liability, deferred revenue and advance from customers.

No definition available.

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- Definition

Services expiration period.

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No definition available.

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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

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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- Definition

Indicates (true false) whether optional exemption was applied not to disclose amount of transaction price allocated to and explanation of expected timing of revenue recognition for remaining performance obligation, when contract has expected duration of one year or less or right to consideration corresponds directly to performance completed.

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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- Definition

Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Principal Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue
Total revenue	$ 321,791	$ 298,617	$ 229,990
Services expiration period	12 months
Remaining performance obligations	$ 10,084	7,902
Contract liability, including both deferred revenue and the advance from customers	$ 39,414	39,248
Revenue, remaining performance obligation, optional exemption, performance obligation [true false]	true
Current deferred revenue
Disaggregation of Revenue
Remaining performance obligations	$ 9,732	7,525
Non-current deferred revenue
Disaggregation of Revenue
Remaining performance obligations	$ 352	$ 377
Maximum
Disaggregation of Revenue
Remaining performance obligation recognition period	60 months
Minimum
Disaggregation of Revenue
Remaining performance obligation recognition period		18 months
PaaS
Disaggregation of Revenue
Total revenue	$ 231,209	$ 217,069	167,694
Smart solution
Disaggregation of Revenue
Total revenue	45,702	41,965	26,517
SaaS and others
Disaggregation of Revenue
Total revenue	44,880	39,583	35,779
Cloud-based connectivity and basic IoT services
Disaggregation of Revenue
Total revenue	$ 1,119	$ 968	$ 1,237