v3.26.1
Document and Entity Information - 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 001-43108  
Entity Registrant Name Once Upon a Farm, PBC  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 47-3648280  
Entity Address, Address Line One 950 Gilman Street  
Entity Address, Address Line Two Suite 100  
Entity Address, City or Town Berkeley  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94710  
City Area Code 888  
Local Phone Number 983-1606  
Title of 12(b) Security Common Stock, par value $0.0001  
Trading Symbol OFRM  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   41,990,653
Entity Central Index Key 0001696556  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --12-31  
Amendment Flag false