XML 44 R33.htm IDEA: XBRL DOCUMENT v3.20.2
Property and Equipment (Tables)
 6 Months Ended
Jun. 30, 2020
Property Plant And Equipment [Abstract]  
Property and Equipment, Net

Property and equipment, net, as of June 30, 2020 and December 31, 2019 consisted of the following:

 

 

Estimated

Useful Life

 

June 30, 2020

 

 

December 31, 2019

 

Lab and test equipment

 

7 years

 

$

17,219

 

 

$

14,810

 

Vehicles

 

5 years

 

 

12,658

 

 

 

11,073

 

Equipment

 

3–7 years

 

 

30,747

 

 

 

29,922

 

Furniture and fixtures

 

7 years

 

 

2,798

 

 

 

1,119

 

Leasehold improvements

 

7 years

 

 

6,633

 

 

 

5,954

 

Aircraft

 

10 years

 

 

834

 

 

 

—

 

Building

 

39 years

 

 

2,975

 

 

 

—

 

 

 

 

 

 

73,864

 

 

 

62,878

 

Land

 

 

 

 

725

 

 

 

—

 

Construction in progress

 

 

 

 

—

 

 

 

796

 

Less accumulated depreciation

 

 

 

 

(39,818

)

 

 

(36,638

)

Total property and equipment—net

 

 

 

$

34,771

 

 

$

27,036