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Property and Equipment, Net
12 Months Ended
Dec. 31, 2021
Property and Equipment, Net  
Property and Equipment, Net

7. Property and Equipment, Net

Property and equipment consist of the following ($ in thousands):

    

Useful Life

    

December 31, 

    

December 31, 

(Years)

2021

2020

Machinery and equipment

3 - 10

$

940

$

2,894

Office furniture and equipment

 

3 - 10

 

50

 

49

Leasehold improvements

 

6

 

228

 

228

Construction in progress

 

N/A

 

 

461

 

1,218

 

3,632

Less: accumulated depreciation and amortization

 

(495)

 

(3,079)

Property and equipment, net

$

723

$

553

Depreciation expense for the year ended December 31, 2021 and 2020 was $99 thousand and $42 thousand, respectively.