Note 9 - Debt - Schedule of Maturity (Details) $ in Millions	Dec. 31, 2023 USD ($)
Long-Term Debt	$ 32
Revolving Credit Facility [Member] \| Line of Credit [Member]
2024	4
2025	4
2026	$ 24

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant