Note 20 - Other Postretirement Benefits - Schedule of Weighted- Average Assumption (Details) - Other Postretirement Benefits Plan [Member]	Dec. 31, 2023	Dec. 31, 2022
Discount rate	4.64%	5.15%
Salary increase rate	1.85%	2.10%

Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant