Property, Plant and Equipment, Net (Tables)
 12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
Depreciation and amortization are generally computed using either an accelerated or straight-line method and is based on estimated useful lives or lease terms as follows:
Years
Buildings and improvements
3 – 10
Machinery, equipment and vehicles
3 – 12
Office furniture and equipment, computers and software
3 – 7
Property, plant and equipment, net consisted of the following at December 31:
(In thousands)20202019
Buildings and improvements$2,143 $1,830 
Machinery, equipment and vehicles17,774 15,052 
Office furniture and equipment, computers and software17,346 12,998 
Property, plant and equipment, gross37,263 29,880 
Less: accumulated depreciation and amortization(14,690)(11,036)
Property, plant and equipment, net$22,573 $18,844