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Property and Equipment (Tables)
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Property and Equipment [Abstract]    
Schedule of Property and Equipment Property and equipment consist of the following (in thousands):
 

Estimated
Life

 

March 31,
2024

 

December 31,
2023

Computer equipment

 

3 years

 

$

39

 

 

$

39

 

Lab equipment

 

5 years

 

 

130

 

 

 

130

 

Furniture and fixtures

 

5 years

 

 

37

 

 

 

37

 

Computer software

 

3 years

 

 

16

 

 

 

16

 

       

 

222

 

 

 

222

 

Accumulated depreciation and amortization

     

 

(215

)

 

 

(212

)

Property and equipment, net

     

$

7

 

 

$

10

 

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

Estimated
Life

 

December 31,
2023

 

December 31,
2022

Computer equipment

 

3 years

 

$

39

 

 

$

39

 

Lab equipment

 

5 years

 

 

130

 

 

 

130

 

Furniture and fixtures

 

5 years

 

 

37

 

 

 

44

 

Computer software

 

3 years

 

 

16

 

 

 

16

 

       

 

222

 

 

 

229

 

Accumulated depreciation and amortization

     

 

(212

)

 

 

(204

)

Property and equipment, net

     

$

10

 

 

$

25