Notes And Other Explanatory Information [Abstract]
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                                        2024-01-01 to 2024-12-31  | 
                            
                        
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| Notes and other explanatory information [abstract] | |
| Disclosure of auditors' remuneration [text block] | 
                                        
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| Disclosure of authorisation of financial statements [text block] | 
                                        
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| Disclosure of borrowings [text block] | 
                                        
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| Disclosure of cash and bank balances at central banks [text block] | 
                                        
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| Disclosure of collateral [text block] | 
                                        
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| Disclosure of commitments [text block] | 
                                        
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| Disclosure of commitments and contingent liabilities [text block] | 
                                        
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| Disclosure of credit risk [text block] | 
                                        
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| Disclosure of deposits from banks [text block] | 
                                        
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| Disclosure of derivative financial instruments [text block] | 
                                        
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| Disclosure of dividends [text block] | 
                                        
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| Disclosure of events after reporting period [text block] | 
                                        
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| Disclosure of fair value measurement [text block] | 
                                        
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| Disclosure of fee and commission income (expense) [text block] | 
                                        
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| Disclosure of financial instruments designated at fair value through profit or loss [text block] | 
                                        
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| Disclosure of financial risk management [text block] | 
                                        
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| Disclosure of income tax [text block] | 
                                        
                                             
                                                11  Income tax expense, tax assets and tax liabilities
                                                
                                             
                                        
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| Disclosure of information about key management personnel [text block] | 
                                        
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| Disclosure of interest income (expense) [text block] | 
                                        
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| Disclosure of interests in other entities [text block] | 
                                        
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| Disclosure of investments other than investments accounted for using equity method [text block] | 
                                        
                                             
                                                17  Financial investments
                                                
                                             
                                        
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| Disclosure of liquidity risk [text block] | 
                                        
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| Disclosure of market risk [text block] | 
                                        
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| Disclosure of objectives, policies and processes for managing capital [text block] | 
                                        
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| Disclosure of other liabilities [text block] | 
                                        
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| Disclosure of other operating income (expense) [text block] | 
                                        
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| Disclosure of prepayments and other assets [text block] | 
                                        
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| Disclosure of repurchase and reverse repurchase agreements [text block] | 
                                        
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| Disclosure of share capital, reserves and other equity interest [text block] | 
                                        
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| Disclosure of share-based payment arrangements [text block] | 
                                        
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