The cumulative amount of the unrecognised share of losses of joint ventures if the entity has stopped recognising its share of losses when applying the equity method. [Refer: Joint ventures [member]; Unrecognised share of losses of joint ventures]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2022-03-24
-Paragraph 22
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_22_c&doctype=Standard
-URIDate 2022-03-24

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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- Definition

The amount of the unrecognised share of joint ventures' losses if the entity has stopped recognising its share of losses when applying the equity method. [Refer: Joint ventures [member]]

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- Definition

Customer concentration risk, percentage of revenue.

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Percentage of non-current assets other than financial instruments.

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Percentage of revenue from external customers.

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Segment information (Details)	12 Months Ended
Segment information (Details)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2022 CNY (¥)
Disclosure Of Operating Segments [Line Items]
Unrecognised share of losses of joint ventures		$ 997,000
Cumulative unrecognised share of losses of joint ventures		$ 997,000		¥ 997,000
Customers concentration risk, percentage of revenue	10.00%
Bottom of range [member] \| PRC [Member]
Disclosure Of Operating Segments [Line Items]
Revenue external customers percentage	90.00%
Percentage of non-current assets other than financial instruments	90.00%