Quarterly report pursuant to Section 13 or 15(d)

Cover Page

v3.21.2
Cover Page - shares
6 Months Ended
Jun. 30, 2021
Aug. 10, 2021
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2021  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q2  
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, Country 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 Current Reporting Status No  
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  
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   15,074,682
Common Class A [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   28,060,762
Common Class B [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   8,102,103