Long-Lived Assets - Summary of Property and Equipment Net (Detail) - USD ($) |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Property, Plant, and Equipment [Line Items] | ||
| Property and equipment, gross | $ 209,288 | $ 209,288 |
| Less: Accumulated depreciation and amortization | (204,244) | (196,919) |
| Property and equipment, net | 5,044 | 12,369 |
| Plant and equipment [Member] | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property and equipment, gross | 113,159 | 113,159 |
| Office and storage equipment [Member] | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property and equipment, gross | 288 | 288 |
| Furniture and fixtures [Member] | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property and equipment, gross | 468 | 468 |
| Leasehold improvements [Member] | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property and equipment, gross | $ 95,373 | $ 95,373 |
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- Definition Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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