Annual report pursuant to Section 13 and 15(d)

Cover Page

v3.22.1
Cover Page - USD ($)
12 Months Ended
Dec. 31, 2021
Mar. 21, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Entity Registrant Name Prime Impact Acquisition I    
Entity Central Index Key 0001819175    
Entity Incorporation, State or Country Code E9    
Entity File Number 001-39501    
Entity Tax Identification Number 98-1554335    
Entity Address, Address Line One 123 E San Carlos Street    
Entity Address, Address Line Two Suite 12    
Entity Address, City or Town San Jose    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 95112    
City Area Code 650    
Local Phone Number 825-6965    
Title of 12(b) Security Class A ordinary Shares , par value $0.0001 per share    
Trading Symbol PIAI    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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    
Entity Ex Transition Period false    
Entity Shell Company true    
ICFR Auditor Attestation Flag false    
Entity Public Float     $ 315,934,066
Auditor Name WithumSmith+Brown, PC    
Auditor Firm ID 100    
Auditor Location New York    
Capital Units [Member]      
Document Information [Line Items]      
Title of 12(b) Security Units, each consisting of one Class A ordinary share and one-third of a Warrant to acquire one Class A ordinary share    
Trading Symbol PIAI.U    
Security Exchange Name NYSE    
Warrant [Member]      
Document Information [Line Items]      
Title of 12(b) Security Warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50    
Trading Symbol PIAI.W    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   15,293,475  
Common Class A [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   28,714,681  
Common Class B [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   8,102,103