Note 7 - Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Property and equipment, gross	$ 78,046	$ 77,408
Less accumulated depreciation and amortization	(26,709)	(26,109)
Property and equipment, net	51,337	51,299
Land and Land Improvements [Member]
Property and equipment, gross	15,156	15,150
Building and Building Improvements [Member]
Property and equipment, gross	47,084	47,026
Machinery and Equipment [Member]
Property and equipment, gross	5,508	5,469
Office Equipment [Member]
Property and equipment, gross	8,097	8,000
Vehicles [Member]
Property and equipment, gross	661	677
Construction in Progress [Member]
Property and equipment, gross	$ 1,540	$ 1,086

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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