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Balance Sheet Components (Tables)
12 Months Ended
Dec. 31, 2020
Balance Sheet Components [Abstract]  
Components of Inventory

December 31,

December 31,

(in thousands)

2020

2019

Purchased materials

$

3,531

$

3,966

Work in process

6,651

4,594

Finished goods

4,048

4,752

Inventory

$

14,230

$

13,312

Components of Property and Equipment, Net

December 31,

(in thousands)

2020

2019

Laboratory equipment and machinery

$

24,948

$

25,173

Leasehold improvements

29,931

29,902

Computer equipment

12,400

11,851

Software

4,940

4,747

Furniture and fixtures

2,434

2,422

Construction in progress

137

193

74,790

74,288

Less: Accumulated depreciation

(49,891)

(44,218)

Property and equipment, net

$

24,899

$

30,070

Schedule of Accrued Expenses

December 31,

(in thousands)

2020

2019

Salaries and benefits

$

15,261

$

9,748

Accrued product development costs

415

67

Accrued Tenant Improvements for Menlo Park building

998

Inventory accrual

218

229

Accrued professional services and legal fees

726

943

Other

730

1,257

Accrued expenses

$

17,350

$

13,242

Schedule of Other Liabilities, Current

December 31,

(in thousands)

2020

2019

Accrued ESPP

$

2,037

$

Other

2,482

225

Other liabilities, current

$

4,519

$

225