v3.26.3
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2026
Nov. 02, 2026
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q3  
Document Period End Date Sep. 30, 2026  
Document Quarterly Report true  
Document Transition Report false  
Current Fiscal Year End Date --12-31  
Entity Registrant Name The Zcash ETF  
Entity Central Index Key 0001720265  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Entity Common Stock, Shares Outstanding   22,197,900
Entity Shell Company false  
Entity Filer Category Non-accelerated Filer  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity File Number 001-43458  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 82-6646113  
Entity Address, Address Line One c/o Grayscale Investments Sponsors, LLC  
Entity Address, Address Line Two 290 Harbor Drive, 4th Floor  
City Area Code 212  
Local Phone Number 668-1427  
Entity Address, City or Town Stamford  
Entity Address, Postal Zip Code 06902  
Entity Address, State or Province CT  
Title of 12(b) Security The Zcash ETF Shares  
Trading Symbol ZCSH  
Security Exchange Name NYSEArca