Note 9 - Subsequent Events (Details Textual) - USD ($) $ in Millions	Apr. 28, 2024	Jul. 17, 2023
Proceeds from Divestiture of Businesses and Interests in Affiliates		$ 0.4
Subsequent Event [Member]
Proceeds from Divestiture of Businesses and Interests in Affiliates	$ 0.8
Disposal Group, Including Discontinued Operation, Potential Payments Remaining	$ 7.6
Maximum [Member]
Disposal Group, Including Discontinued Operation, Consideration		$ 9.5

The cash inflow associated with the amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration