Note 5 - Property - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Land	$ 51,224	$ 51,235
Less accumulated depreciation	35,067	34,237
Property and equipment, net	16,157	16,998
Land [Member]
Land	5,052	5,063
Land Improvements [Member]
Land	12,943	12,943
Building [Member]
Land	22,869	22,869
Machinery and Equipment [Member]
Land	$ 10,360	$ 10,360

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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