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Property and Equipment, Net
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net
6.
Property and Equipment, Net

Property and equipment, net consisted of the following (in thousands):

 

 

 

December 31,

 

 

 

2022

 

 

2021

 

Manufacturing equipment

 

$

3,721

 

 

$

1,769

 

OCS Consoles

 

 

10,878

 

 

 

8,865

 

Computer equipment and software

 

 

2,064

 

 

 

1,511

 

Laboratory equipment

 

 

671

 

 

 

668

 

Office and trade show equipment

 

 

2,121

 

 

 

177

 

Leasehold improvements

 

 

12,415

 

 

 

1,319

 

Construction-in-progress

 

 

482

 

 

 

5,267

 

 

 

 

32,352

 

 

 

19,576

 

Less: Accumulated depreciation and amortization

 

 

(13,129

)

 

 

(9,735

)

 

 

$

19,223

 

 

$

9,841

 

 

During the years ended December 31, 2022, 2021 and 2020, total depreciation and amortization expense was $3.5 million, $1.8 million and $1.6 million, respectively. Of those amounts, $1.7 million, $1.4 million and $1.3 million, respectively, was recorded as expense in cost of revenue related to the depreciation of OCS Consoles.