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Property and Equipment (Tables)
 3 Months Ended
Mar. 31, 2021
Property, Plant and Equipment [Abstract]  
Components of property and equipment Property and equipment are as follows (in thousands):
March 31, 2021December 31, 2020
Land$1,986 $2,415 
Land improvements861 867 
Buildings and leasehold improvements6,365 6,364 
Machinery and equipment7,777 7,760 
Furniture and fixtures649 649 
Transportation equipment1,189 1,190 
Computer equipment and software1,304 1,296 
Property and equipment20,131 20,541 
Less accumulated depreciation(11,873)(11,454)
Property and equipment, net$8,258 $9,087