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Note 21 - Deferred tax assets and liabilities (Details Textual)
$ in Millions
Dec. 31, 2022
USD ($)
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]  
Unused tax losses for which no deferred tax asset recognised $ 120.4
Unused tax losses for which no deferred tax asset recognised, percent expiring in less than one year 8.00%
Unused tax losses for which no deferred tax asset recognised, percent expiring between two and five years 4.00%
Unused tax losses for which no deferred tax asset recognised, percent expiring in more than five years 88.00%
USA  
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]  
Deferred tax assets related to taxable losses of subsidiaries $ 300.0