v3.26.3
Stockholders' Equity (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 28, 2026
Aug. 01, 2025
Jun. 16, 2025
Mar. 06, 2025
Feb. 14, 2025
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Mar. 31, 2025
Feb. 14, 2024
Class of Stock [Line Items]                        
Common stock, shares authorized           600,000,000 600,000,000   600,000,000 600,000,000    
Common stock, par value (in Dollars per share)           $ 0.0001 $ 0.0001   $ 0.0001 $ 0.0001    
Common stock, shares issued           55,407,302 55,407,302   48,477,883 5,836,882    
Common stock, shares outstanding           55,021,701 55,021,701   48,419,266 5,836,882    
Common Stock, Voting Rights             one vote per share   one vote per share      
Preferred stock , shares authorized           20,000,000 20,000,000   20,000,000 20,000,000    
Preferred stock, par value (in Dollars per share)           $ 0.0001 $ 0.0001   $ 0.0001 $ 0.0001    
Preferred stock , shares issued           0 0   0 10,204,880    
Preferred stock , shares outstanding           0 0   0 10,204,880    
Warrants exercisable price per share (in Dollars per share)           $ 15 $ 15       $ 15  
Reserved for issuance shares           1,216,254 1,216,254   750,000      
Sale of common stock                 1,420,000      
Proceeds from issuance of common stock (in Dollars)             $ 3,262,213 $ 4,369,210 $ (1,646,875)    
Percentage of common stock             1.00%          
Sold shares (in Dollars)             $ 3,009,021   4,315,270      
Amortization related to deferred issuance costs (in Dollars)             $ 6,638 $ 112,187 $ 236,305    
March 2025 Investor Note [Member]                        
Class of Stock [Line Items]                        
Common stock, par value (in Dollars per share)       $ 15       $ 15        
Number of warrants related to legacy       925,590       925,590        
Warrants exercisable price per share (in Dollars per share)           $ 15 $ 15   $ 15      
Warrants outstanding           925,590 925,590   925,590      
Issuance of common stock, shares       750,000                
Two Thousand Twenty Five Employee Share Purchase Plan [Member]                        
Class of Stock [Line Items]                        
Reserved for issuance shares   1,216,254                    
Percentage of eligible compensation per employee to purchase shares of common stock   15.00%                    
Initial offering period   under the ESPP, each consisting of consecutive six-month offering periods with the initial offering period beginning on September 1, 2025 and ending on February 28, 2026.                    
Commencement date   Mar. 01, 2026                    
Employee purchase price, percentage of fair market value of common stock 85.00% 85.00%                    
Employee share purchase plan, purchase date                 Feb. 27, 2026      
Common stock purchased 57,485                      
Purchase price per share (in Dollars per share) $ 1.27                      
Common Stock [Member]                        
Class of Stock [Line Items]                        
Common stock, shares authorized         600,000,000              
Common stock, par value (in Dollars per share)         $ 0.0001              
Issuance of common stock, shares             4,402,410   1,417,544      
Common stock purchased             57,485          
Sold shares (in Dollars)             $ 440   $ 142      
Common Stock [Member] | Two Thousand Twenty Five Employee Share Purchase Plan [Member]                        
Class of Stock [Line Items]                        
Sold shares (in Dollars)           $ 4,230,000 $ 4,400,000          
Preferred Stock [Member]                        
Class of Stock [Line Items]                        
Preferred stock , shares authorized                       20,000,000
Preferred stock, par value (in Dollars per share)                       $ 0.0001
Series A [Member]                        
Class of Stock [Line Items]                        
Number of warrants related to legacy           869,565 869,565 869,565        
Warrants exercisable price per share (in Dollars per share)               $ 12.5        
Series A [Member] | June 2025 Amended Investor Note [Member]                        
Class of Stock [Line Items]                        
Number of warrants related to legacy                 869,565      
Warrants exercisable price per share (in Dollars per share)                 $ 12.5      
Series A [Member] | December 2024 Investor Note                        
Class of Stock [Line Items]                        
Number of warrants related to legacy           869,565 869,565          
Warrants exercisable price per share (in Dollars per share)           $ 12.5 $ 12.5          
Series A [Member] | Fold Predecessor [Member]                        
Class of Stock [Line Items]                        
Number of warrants related to legacy                   869,565    
Warrants exercisable price per share (in Dollars per share)                   $ 12.5    
Series C [Member]                        
Class of Stock [Line Items]                        
Number of warrants related to legacy           12.5 12.5 869,565        
Warrants exercisable price per share (in Dollars per share)           $ 9 $ 9 $ 9        
Series C [Member] | June 2025 Amended Investor Note [Member]                        
Class of Stock [Line Items]                        
Number of warrants related to legacy                 869,565      
Warrants exercisable price per share (in Dollars per share)                 $ 9      
Series C [Member] | December 2024 Investor Note                        
Class of Stock [Line Items]                        
Number of warrants related to legacy           869,565 869,565          
Warrants exercisable price per share (in Dollars per share)           $ 9 $ 9          
Series C [Member] | Fold Predecessor [Member]                        
Class of Stock [Line Items]                        
Number of warrants related to legacy                   869,565    
Warrants exercisable price per share (in Dollars per share)                   $ 11.5    
Series B [Member]                        
Class of Stock [Line Items]                        
Number of warrants related to legacy           869,565 869,565          
Series B [Member] | Fold Predecessor [Member]                        
Class of Stock [Line Items]                        
Number of warrants related to legacy                   500,000    
Warrants exercisable price per share (in Dollars per share)                   $ 0.001    
FTAC Emerald [Member]                        
Class of Stock [Line Items]                        
Common stock, shares outstanding                 14,237,038      
Number of warrants related to legacy           12,434,658 12,434,658   12,434,658      
Warrants exercisable price per share (in Dollars per share)           $ 11.5 $ 11.5   $ 11.5      
FTAC Emerald [Member] | Common Stock [Member]                        
Class of Stock [Line Items]                        
Sale of common stock         34,100,000              
Two Thousand Twenty Five Equity Line of Credit [Member]                        
Class of Stock [Line Items]                        
Common stock, par value (in Dollars per share)     $ 0.0001                  
Equity line of credit facility, term     24 months                  
Beneficial ownership limitation percentage     9.99%                  
Sale of common stock                 1,420,000      
Proceeds from issuance of common stock (in Dollars)                 $ 4,370,000      
Amortization related to deferred issuance costs (in Dollars)                 $ 100,000      
Fair value of shares     0                  
Amortization related to deferred issuance costs (in Dollars)           $ 200,000 $ 200,000          
Two Thousand Twenty Five Equity Line of Credit [Member] | Two Thousand Twenty Five Employee Share Purchase Plan [Member]                        
Class of Stock [Line Items]                        
Proceeds from issuance of common stock (in Dollars)           $ 2,900,000 $ 3,200,000          
Two Thousand Twenty Five Equity Line of Credit [Member] | Common Stock [Member]                        
Class of Stock [Line Items]                        
Issuance of common stock, shares     250,000,000                  
Two Thousand Twenty Five Equity Line of Credit [Member] | Put Option [Member]                        
Class of Stock [Line Items]                        
Put option settlement date, description     The fair value of the put option was determined to be zero as the shares to be issued and the purchase price is settled within one to two business days.                  
Fair value of the put option (in Dollars)     $ 0                  
Maximum [Member] | Two Thousand Twenty Five Equity Line of Credit [Member]                        
Class of Stock [Line Items]                        
Percentage of volume weighted average price     97.00%                  
Business days     2 years                  
Minimum [Member] | Two Thousand Twenty Five Equity Line of Credit [Member]                        
Class of Stock [Line Items]                        
Percentage of volume weighted average price     92.00%                  
Business days     1 year                  
Convertible Preferred Stock [Member]                        
Class of Stock [Line Items]                        
Preferred stock , shares issued                  
Preferred stock , shares outstanding                  
Convertible Preferred Stock [Member] | Fold Predecessor [Member]                        
Class of Stock [Line Items]                        
Preferred stock , shares issued                   10,200,000    
Preferred stock , shares outstanding                   10,200,000    
Convertible Preferred Stock [Member] | Two Thousand Twenty Five Equity Line of Credit [Member]                        
Class of Stock [Line Items]                        
Common stock, par value (in Dollars per share)     $ 100.0000                  
Issuance of common stock, shares     250,000,000