v3.26.1
FAIR VALUE MEASUREMENTS - Carrying value and fair value for the convertible notes payable (Details) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Carrying Amount    
FAIR VALUE MEASUREMENTS    
Convertible debt $ 6,282,197 $ 4,599,225
Carrying Amount | 2025 Convertible Notes    
FAIR VALUE MEASUREMENTS    
Convertible debt 1,963,754 3,212,250
Carrying Amount | 2026 Convertible Notes    
FAIR VALUE MEASUREMENTS    
Convertible debt 3,712,000  
Carrying Amount | SEPA Convertible Note    
FAIR VALUE MEASUREMENTS    
Convertible debt 606,443 1,386,975
Estimated Fair Value    
FAIR VALUE MEASUREMENTS    
Convertible debt 6,189,849 5,321,303
Estimated Fair Value | 2025 Convertible Notes    
FAIR VALUE MEASUREMENTS    
Convertible debt 2,030,796 3,778,303
Estimated Fair Value | 2026 Convertible Notes    
FAIR VALUE MEASUREMENTS    
Convertible debt 3,318,053  
Estimated Fair Value | SEPA Convertible Note    
FAIR VALUE MEASUREMENTS    
Convertible debt $ 841,000 $ 1,543,000