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Property and Equipment, Net
 12 Months Ended
Dec. 28, 2019
Property, Plant and Equipment [Abstract]  
Property, plant and Equipment, Net Property and Equipment, net
Property and equipment, net consists of the following:
 
December 28, 2019
 
December 29, 2018
Office furniture and equipment
$
4,198

 
$
2,328

Computer equipment
10,704

 
11,640

Survey and field equipment
24,165

 
5,526

Leasehold improvements
6,266

 
2,541

Total
45,333

 
22,035

Less: accumulated depreciation
(19,600
)
 
(10,358
)
Property and equipment, net
$
25,733

 
$
11,677


Depreciation expense for fiscal years 2019, 2018 and 2017 was $5,327, $4,331 and $2,818, respectively.