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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Summary of Assets Measured at Fair Value on Recurring Basis

The following table summarizes assets measured at fair value on a recurring basis at December 31, 2019 (in thousands):

 

 

 

 

 

 

 

Active

 

 

Observable

 

 

Unobservable

 

 

 

December 31,

 

 

Markets

 

 

Inputs

 

 

Inputs

 

Description

 

2019

 

 

(Level 1)

 

 

(Level 2)

 

 

(Level 3)

 

Money market funds (included in cash and cash equivalents)

 

$

33,774

 

 

$

33,774

 

 

$

 

 

$

 

U.S. treasury securities (included in marketable securities)

 

 

57,699

 

 

 

57,699

 

 

 

 

 

 

 

Total

 

$

91,473

 

 

$

91,473

 

 

$

 

 

$

 

 

The following table summarizes assets measured at fair value on a recurring basis at December 31, 2018 (in thousands):

 

 

 

 

 

 

 

Active

 

 

Observable

 

 

Unobservable

 

 

 

December 31,

 

 

Markets

 

 

Inputs

 

 

Inputs

 

Description

 

2018

 

 

(Level 1)

 

 

(Level 2)

 

 

(Level 3)

 

Money market funds (included in cash and cash equivalents)

 

$

6,804

 

 

$

6,804

 

 

$

 

 

$

 

U.S. treasury securities (included in cash and cash equivalents)

 

 

238

 

 

 

238

 

 

 

 

 

 

 

U.S. treasury securities (included in marketable securities)

 

 

100,986

 

 

 

100,986

 

 

 

 

 

 

 

Total

 

$

108,028

 

 

$

108,028

 

 

$

 

 

$

 

Schedule of Estimated Useful Lives of Property and Equipment

The estimated useful lives of property and equipment are as follows:

 

 

 

Useful Life

(in years)

Leasehold improvements

 

Lesser of useful life or

remaining lease term

Machinery and equipment

 

2-8 years

Furniture and fixtures

 

3-5 years

Computers

 

1-5 years

Office equipment

 

3-5 years

Software

 

3-5 years