Note 6 - Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Property and equipment, gross	$ 74,063	$ 72,738
Less accumulated depreciation and amortization	(24,323)	(23,760)
Property and equipment, net	49,740	48,978
Land and Land Improvements [Member]
Property and equipment, gross	14,832	14,823
Building and Building Improvements [Member]
Property and equipment, gross	44,654	44,596
Machinery and Equipment [Member]
Property and equipment, gross	5,128	5,005
Office Equipment [Member]
Property and equipment, gross	7,374	7,234
Vehicles [Member]
Property and equipment, gross	499	499
Construction in Progress [Member]
Property and equipment, gross	$ 1,576	$ 581

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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