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Property and Equipment
 12 Months Ended
Dec. 31, 2018
Property and Equipment  
Property and Equipment

6.    Property and Equipment

 

Property and equipment and related accumulated depreciation were as follows (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31, 

 

    

Estimated Useful Life (Years)

    

2018

    

2017

Lab equipment

 

3

 

$

 —

 

$

1,470

Computer equipment

 

3

 

 

100

 

 

165

Furniture and fixtures

 

5

 

 

75

 

 

77

Leasehold improvements

 

Lesser of useful life or remaining lease term

 

 

202

 

 

264

 

 

 

 

 

377

 

 

1,976

Less accumulated depreciation and amortization

 

 

 

 

(321)

 

 

(1,655)

Total property and equipment, net

 

 

 

$

56

 

$

321

 

Depreciation and amortization expense was $0.1 million and $0.3 million for the years ended December 31, 2018 and 2017, respectively.