Note 12 - Commitments and Contingencies (Details Textual) $ in Millions	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2010 USD ($)
Loss Contingency Accrual, Product Liability, Net	$ 1
Accrual for Environmental Loss Contingencies	$ 6	$ 8
Property Lease Guarantee [Member] | Structural Products [Member]
Guarantee of Lease Obligations, Number of Leases Assigned			3
Guarantee Obligations, Other Contracts			$ 6