| Document and Entity Information | Oct. 31, 2022 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001831915 |
| Document Type | 8-K |
| Document Period End Date | Oct. 31, 2022 |
| Entity Registrant Name | Cytek Biosciences, Inc. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-40632 |
| Entity Tax Identification Number | 47-2547526 |
| Entity Address, Address Line One | 47215 Lakeview Boulevard |
| Entity Address, City or Town | Fremont |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94538 |
| City Area Code | (877) |
| Local Phone Number | 922-9835 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, par value $0.001 per share |
| Trading Symbol | CTKB |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
