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Unrestricted Net Assets - Schedule of Condensed Financial Information on Results of Operations (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Condensed Financial Information on Results of Operations [Line Items] |  |
Revenue | $ 13,971,729 | $ 20,957,972
Cost or revenues | 12,757,365 | 15,203,140
Operating expenses | 5,978,069 | 3,677,617
Income taxes | 14,361 | 126,984
Net (loss) income – Consolidated | (7,132,573) | 929,059
Northann Corp [Member] |  |
Condensed Financial Information on Results of Operations [Line Items] |  |
Revenue | 43,251 | 0
Cost or revenues | 0 | 0
Operating expenses | 3,381,482 | 313,699
Income taxes | 12,919 | 0
Loss – Parent only | (3,351,150) | (313,699)
(Loss) income– Subsidiaries with unrestricted net assets | (2,117,498) | 1,471,361
(Loss) income – Subsidiaries with restricted net assets | (2,529) | (228,603)
Net (loss) income – Consolidated | $ (5,471,177) | $ 929,059

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