v3.26.3
Recapitalization - Schedule of Number of Shares of Common Stock (Details) - shares
 12 Months Ended
Dec. 31, 2025
Jun. 30, 2026
Feb. 14, 2025
Dec. 31, 2024
Schedule of Number of Shares of Common Stock [Line Items]        
FTAC Emerald total shares outstanding prior to the Merger 48,419,266 55,021,701   5,836,882
Class A Shares of FTAC Emerald 48,419,266 55,021,701   5,836,882
Shares issued for Fold Common Stock 48,477,883 55,407,302   5,836,882
Exercise of Series B warrants 500,000      
Issuance of March 2025 Closing Shares 750,000 1,216,254    
Total Shares of Common Stock outstanding 46,250,665      
FTAC Emerald [Member]        
Schedule of Number of Shares of Common Stock [Line Items]        
FTAC Emerald total shares outstanding prior to the Merger 14,237,038      
Less: Redemption of FTAC Emerald shares (3,304,183)      
Class A Shares of FTAC Emerald 14,237,038      
Fold Holdings Inc [Member]        
Schedule of Number of Shares of Common Stock [Line Items]        
Shares issued for Fold Common Stock 34,067,810      
Class A [Member] | FTAC Emerald [Member]        
Schedule of Number of Shares of Common Stock [Line Items]        
FTAC Emerald total shares outstanding prior to the Merger 10,932,855   10,932,855  
Class A Shares of FTAC Emerald 10,932,855   10,932,855