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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Components of property, plant and equipment Depreciation or amortization of property and equipment, including right-of-use assets (“ROU”), is calculated using the straight-line method over the asset’s estimated useful life as follows:
Buildings and leasehold improvements
2-30 years
Machinery and equipment
7-10 years
Furniture and fixtures3 years
Land improvements20 years
Transportation equipment
2-5 years
Computer equipment and software
3-7 years
Property and equipment are as follows (in thousands):
December 31,
20202019
Land$2,415 $2,415 
Land improvements867 2,025 
Buildings and leasehold improvements6,364 38,741 
Machinery and equipment7,760 27,694 
Furniture and fixtures649 1,671 
Transportation equipment1,190 1,440 
Computer equipment and software1,296 3,348 
Property and equipment20,541 77,334 
Less accumulated depreciation(11,454)(37,505)
Property and equipment, net$9,087 $39,829