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Equipment
 12 Months Ended
Dec. 31, 2019
Property, Plant and Equipment [Abstract]  
Equipment
Equipment
 
December 31,
Equipment consists of (in thousands):
2019
 
2018
Laboratory equipment
$
8,008

 
$
7,444

Office equipment and leasehold improvements
3,191

 
3,043

Process development equipment not yet in service
574

 
822

 
11,773

 
11,309

Accumulated depreciation
(8,891
)
 
(8,307
)
 
$
2,882

 
$
3,002


During 2019, we disposed of approximately $0.1 million of obsolete laboratory equipment, office equipment and leasehold improvements, all of which were fully depreciated.