Note 5 - Leasing Arrangements (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment, Net, Ending Balance	$ 16,998	$ 18,511
Asset Leased to Others [Member]
Property, Plant and Equipment, Net, Ending Balance	$ 11,200	$ 12,700

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