Note 8 - Lease Obligations (Details Textual) - Property, Plant, and Equipment, Net [Member] - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Operating Lease, Right-of-Use Asset	$ 51.8	$ 58.9
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	$ 1.9	$ 5.3

Amount, after accumulated amortization, of right-of-use asset from finance lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

Name:	us-gaap_FinanceLeaseRightOfUseAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant