Note 2 - Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Oct. 02, 2023	Jan. 03, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill	$ 52,091			$ 10,496	$ 10,496
Metal-Fab [Member]
Cash and cash equivalents			$ 1,728
Accounts receivable, net		5,339	10,597
Prepaid expenses and other			740
Inventories, net		3,906	17,236
Property and equipment		16,193	20,408
Goodwill		8,401	33,194
Intangible assets		9,590	54,740
Right-of-use and other long-term assets		917	6,930
Total assets acquired		44,346	145,573
Total liabilities assumed		(4,054)	(14,369)
Cash paid		$ 40,292	$ 131,204