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Note 9 - Property, Plant and Equipment - Property, Plant and Equipment Components (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Gross property, plant and equipment $ 64,049 $ 72,717
Accumulated depreciation (52,374) (58,062)
Property plant and equipment net 11,675 14,655
Capital Leased Assets, Gross 4,674 4,272
Accumulated depreciation (1,495) (976)
Capital Leased Assets, Net 3,179 3,296
Land and Land Improvements [Member]    
Gross property, plant and equipment 50 219
Building and Building Improvements [Member]    
Gross property, plant and equipment 8,108 11,178
Capital Leased Assets, Gross 3,128 2,995
Machinery, Equipment, Furniture, and Fixtures [Member]    
Capital Leased Assets, Gross 1,546 1,277
Property, Plant and Equipment, Other Types [Member]    
Gross property, plant and equipment 55,520 59,179
Construction in Progress [Member]    
Gross property, plant and equipment $ 371 $ 2,141