Annual report [Section 13 and 15(d), not S-K Item 405]

Notes Payable - Schedule of Fair Value Based upon Assumptions (Details)

v3.26.1
Notes Payable - Schedule of Fair Value Based upon Assumptions (Details) - Valuation Technique Binomial Monte Carlo Cliquet Option Pricing Model [Member]
 12 Months Ended
Dec. 31, 2024
₩ / shares
Dec. 31, 2025
₩ / shares
Dec. 31, 2025
$ / shares
Dec. 31, 2024
$ / shares
Debt Instrument [Line Items]        
Stock price | ₩ / shares ₩ 5,870 ₩ 917    
Convertible Promissory Notes [Member]        
Debt Instrument [Line Items]        
Stock price       $ 0.01
Conversion Price [Member]        
Debt Instrument [Line Items]        
Conversion price | (per share) ₩ 850 ₩ 0.69 $ 1,000 3.96
Conversion Price [Member] | Convertible Promissory Notes [Member]        
Debt Instrument [Line Items]        
Conversion price       $ 0.03
Selected Yield [Member] | Convertible Promissory Notes [Member]        
Debt Instrument [Line Items]        
Selected yield 22.70     22.70
Expected Volatility [Member] | Convertible Promissory Notes [Member]        
Debt Instrument [Line Items]        
Selected yield 50     50
Time Until Maturity [Member] | Convertible Promissory Notes [Member]        
Debt Instrument [Line Items]        
Expected life (in years) 1 month 20 days      
Risk-free Interest Rate [Member] | Convertible Promissory Notes [Member]        
Debt Instrument [Line Items]        
Selected yield 4.42     4.42