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Property and Equipment (Tables)
6 Months Ended
Jun. 30, 2019
Property Plant And Equipment [Abstract]  
Schedule of Property and Equipment

Depreciation and amortization of property and equipment is calculated on the straight-line method based on estimated useful lives of six to ten years for tenant improvements and three to fifteen years for all other property and equipment.  Property and equipment consist of the following (in thousands):

 

 

June 30, 2019

 

 

December 31, 2018

 

Lab equipment

 

$

2,953

 

 

$

2,503

 

Computer equipment

 

 

172

 

 

 

113

 

Computer software

 

 

240

 

 

 

194

 

Furniture and fixtures

 

 

281

 

 

 

267

 

Tenant improvements

 

 

900

 

 

 

895

 

Other office equipment

 

 

126

 

 

 

126

 

 

 

 

4,672

 

 

 

4,098

 

Less accumulated depreciation

 

 

(2,965

)

 

 

(2,697

)

 

 

$

1,707

 

 

$

1,401