| Cover Page | Oct. 18, 2023 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 18, 2023 |
| Entity Registrant Name | Northann Corp. |
| Entity Central Index Key | 0001923780 |
| Entity File Number | 001-41816 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | c/o Northann Distribution Center Inc. |
| Entity Address, Address Line Two | 9820 Dino Drive |
| City Area Code | 916 |
| Local Phone Number | 573 3803 |
| Entity Address, Postal Zip Code | 95624 |
| Entity Address, State or Province | CA |
| Entity Address, City or Town | Elk Grove |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Written Communications | false |
| Entity Tax Identification Number | 88-1513509 |
| Entity Address, Address Line Three | Suite 110 |
| Title of 12(b) Security | Common Stock, $0.001 par value |
| Trading Symbol | NCL |
| Security Exchange Name | NYSEAMER |
