Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Mar. 25, 2024
Jun. 30, 2023
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Financial Statement Error Correction [Flag] false    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag false    
Amendment Flag false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Information [Line Items]      
Entity Registrant Name Crown Electrokinetics Corp.    
Entity Central Index Key 0001761696    
Entity File Number 333-249833    
Entity Tax Identification Number 47-5423944    
Entity Incorporation, State or Country Code DE    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Public Float     $ 8.4
Entity Contact Personnel [Line Items]      
Entity Address, Address Line One 1110 NE Circle Blvd    
Entity Address, City or Town Corvallis    
Entity Address, State or Province OR    
Entity Address, Postal Zip Code 97330    
Entity Phone Fax Numbers [Line Items]      
City Area Code (213)    
Local Phone Number 600-4250    
Entity Listings [Line Items]      
Title of 12(b) Security Common Stock, Par Value $0.0001 Per Share    
Trading Symbol CRKN    
Security Exchange Name NASDAQ    
Entity Common Stock, Shares Outstanding   51,702,036