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Property, Plant, and Equipment
3 Months Ended
Mar. 31, 2023
Property, Plant and Equipment  
Property, Plant and Equipment

3. Property, Plant, and Equipment

Property, plant and equipment consisted of the following:

    

March 31, 

    

December 31, 

2023

2022

Lab and build-to-suit equipment

$

6,344

$

6,257

Office equipment

 

19

 

19

Furniture and fixtures

 

134

 

134

Computer equipment

 

400

 

291

Leasehold improvements

 

11,409

 

11,409

Construction-in-progress

 

447

 

155

Total property, plant and equipment

 

18,753

 

18,265

Accumulated depreciation and amortization

 

(14,407)

 

(14,114)

Property, plant and equipment, net

$

4,346

$

4,151

We recorded depreciation and amortization expense related to property, plant and equipment of $0.3 million and $0.4 million for the three months ended March 31, 2023 and 2022, respectively.