Note 11 - Derivative Instruments (Details Textual) - USD ($)	Jan. 10, 2019	Dec. 31, 2023	Jan. 03, 2023	Dec. 31, 2022
Metal Swaps [Member]
Derivative, Notional Amount		$ 5,200,000		$ 0
Interest Rate Swap [Member]
Derivative, Notional Amount	$ 75,000,000
Derivative, Term of Contract (Year)	5 years
Derivative, Fixed Interest Rate	2.57%		2.42%
Interest Rate Swap [Member] | Other Noncurrent Assets [Member]
Derivative Asset		$ 54,800		$ 1,700,000