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Note 22 - Other Liabilities - Actuarial Assumptions (Details) | Dec. 31, 2020 | Dec. 31, 2019
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Bottom of range [member] | Unfunded post-employment benefits [member] |  |
Disclosure of defined benefit plans [line items] |  |
Discount rate | 1.00% | 1.00%
Rate of compensation increase | 0.00% | 0.00%
Bottom of range [member] | Funded post-employment benefits [member] |  |
Disclosure of defined benefit plans [line items] |  |
Discount rate | 1.00% | 3.00%
Rate of compensation increase | 0.00% | 0.00%
Top of range [member] | Unfunded post-employment benefits [member] |  |
Disclosure of defined benefit plans [line items] |  |
Discount rate | 7.00% | 7.00%
Rate of compensation increase | 3.00% | 3.00%
Top of range [member] | Funded post-employment benefits [member] |  |
Disclosure of defined benefit plans [line items] |  |
Discount rate | 3.00% | 4.00%
Rate of compensation increase | 3.00% | 3.00%

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- Definition The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_144&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_ActuarialAssumptionOfDiscountRates
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition The expected rate of salary increases used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_144&doctype=Standard -URIDate 2019-03-27 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Data Type: | na
Balance Type: |
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- Details
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