Share-based payments (Details 1) |
1 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
|
Jul. 31, 2024
Number
£ / shares
|
Feb. 29, 2024
Number
$ / shares
|
Jan. 31, 2024
Number
$ / shares
|
Dec. 31, 2025
Number
|
Dec. 31, 2024
Number
|
Dec. 31, 2023
Number
|
|||
| Notes and other explanatory information [abstract] | ||||||||
| Number of options | 85,922,000 | 130,313,200 | 144,000,000 | 360,235,200 | ||||
| Option pricing models used | Black-Scholes | Black-Scholes | Black-Scholes | |||||
| Share price | 0.00139 | 1.310 | 1.90 | |||||
| Exercise price of options issued in year | (per share) | £ 0.00259 | $ 1.310 | $ 1.90 | |||||
| Contractual life | 10 years | 10 years | 10 years | |||||
| Expected life | 4 years | 4 years | 4 years | |||||
| Volatility | [1] | 110.00% | 100.00% | 100.00% | ||||
| Expected dividend yield | 0.00% | 0.00% | 0.00% | |||||
| Risk free rate | 4.025% | 4.195% | 4.11% | |||||
| ||||||||