v3.25.2
Cover - shares
 6 Months Ended
Jun. 30, 2025
Aug. 10, 2025
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2025  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Entity File Number 001-41414  
Entity Registrant Name Phoenix Motor Inc.  
Entity Central Index Key 0001879848  
Entity Tax Identification Number 85-4319789  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 1500 Lakeview Loop  
Entity Address, City or Town Anaheim  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 92807  
City Area Code (909)  
Local Phone Number 978-0815  
Title of 12(b) Security Common Stock, par value $0.0004 per share  
Trading Symbol PEVM  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   9,856,086