Note 5 - Property and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property and equipment, gross	$ 218,181	$ 200,704
Less accumulated depreciation and amortization	(106,957)	(96,684)
Property, Plant and Equipment, Net, Excluding Construction In Progress	111,224	104,020
Property and equipment, net	121,266	110,184
Land Improvements [Member]
Property and equipment, gross	22,909	22,773
Building [Member]
Property and equipment, gross	49,361	47,663
Leasehold Improvements [Member]
Property and equipment, gross	3,057	0
Machinery and Equipment [Member]
Property and equipment, gross	140,015	127,679
Equipment Under Finance Lease [Member]
Property and equipment, gross	2,839	2,589
Construction in Progress [Member]
Property and equipment, net	$ 10,042	$ 6,164

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services excluding construction in progress and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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