v3.26.1
Income tax (Details Narrative) - HKD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Notes and other explanatory information [abstract]      
Profits tax rates value $ 2,000,000 $ 2,000,000 $ 2,000,000
Tax rate effect from change in tax rate 8.25% 8.25% 8.25%
Tax rate effect of adjustments for current tax of prior periods 16.50% 16.50% 16.50%
Taxed at a flat rate percentage 16.50%    
Applicable tax rate 20.00%    
[custom:UnrecognisedTaxLosses] $ 60,921,000 $ 33,355,000 $ 38,515,000