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 6 Months Ended
Jun. 30, 2025
Cover [Abstract]  
Entity Registrant Name Classover Holdings, Inc.
Entity Central Index Key 0002022308
Document Type S-1
Amendment Flag false
Entity Small Business true
Entity Emerging Growth Company true
Entity Filer Category Non-accelerated Filer
Entity Ex Transition Period false
Entity Incorporation State Country Code DE
Entity Tax Identification Number 99-2827182
Entity Address Address Line 1 450 7th Avenue
Entity Address Address Line 2 Suite 905
Entity Address City Or Town New York
Entity Address State Or Province NY
Entity Address Postal Zip Code 10123
City Area Code 800
Local Phone Number 345-9588