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.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 7: http://www.xbrl.org/2003/role/exampleRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References + Details

Concentrations of risks - Vendor Concentration Risk (Details) - Supplier Concentration Risk	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Cost of Goods and Service Benchmark \| Tangshan Huida Ceramic Group Co., Ltd
Concentration Risk [Line Items]
Concentration risk (as a percent)	53.60%	51.00%	50.70%	56.50%
Cost of Goods and Service Benchmark \| Supplier, Second Largest
Concentration Risk [Line Items]
Concentration risk (as a percent)				10.10%
Accounts Payable \| Tangshan Huida Ceramic Group Co., Ltd
Concentration Risk [Line Items]
Concentration risk (as a percent)			75.10%		83.30%