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Balance Sheet Components (Tables)
12 Months Ended
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Inventory
Inventory consisted of the following (in thousands):
December 31,
20202019
Finished goods$1,702 $1,236 
Work in progress2,936 1,189 
Raw materials5,374 3,589 
Total inventory$10,012 $6,014 
Components of Property and Equipment
Property and equipment consisted of the following (in thousands):
December 31,
20202019
Machinery and equipment$9,325 $7,546 
Leasehold improvements8,096 5,458 
Computer and office equipment5,414 4,996 
Internally developed software2,312 — 
Furniture and fixtures683 683 
Construction in progress1,873 840 
Property and equipment$27,703 $19,523 
Less: Accumulated depreciation and amortization(16,999)(15,093)
Property and equipment, net$10,704 $4,430 
Components of Accrued and Other Liabilities
Accrued and other liabilities consisted of the following (in thousands):
December 31,
20202019
Clinical studies$6,733 $3,068 
Deferred revenue3,530 3,686 
Short-term lease liability2,033 3,017 
Deferred payments for intangible assets2,000 2,098 
Professional fees1,529 766 
Accrued royalty1,072 547 
Contingent consideration738 810 
Test sample processing fees416 835 
Other accrued expenses2,551 2,011 
Total accrued and other liabilities$20,602 $16,838