v3.26.1
Cover - shares
6 Months Ended
Jun. 30, 2026
Jul. 31, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 001-40632  
Entity Registrant Name CYTEK BIOSCIENCES, INC.  
Entity Incorporation State Country Code DE  
Entity Tax Identification Number 47-2547526  
Entity Address Address Line1 47215 Lakeview Blvd.  
Entity Address City Or Town Fremont  
Entity Address, State and Province CA  
Entity Address Postal Zip Code 94538  
City Area Code 877  
Local Phone Number 922-9835  
Security12b Title Common Stock, par value $0.001 per share  
Trading Symbol CTKB  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   129,983,253
Entity Central Index Key 0001831915  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --12-31  
Amendment Flag false