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Marketable Securities (Tables)
 12 Months Ended
Dec. 31, 2018
Investments Debt And Equity Securities [Abstract]  
Summary of Marketable Securities and Cash Equivalents

The following table summarizes the Company’s marketable securities and cash equivalents as of December 31, 2018:

 

 

 

December 31, 2018

 

(in thousands)

 

Amortized

Cost

 

 

Unrealized

Gains

 

 

Unrealized

Losses

 

 

Fair

Value

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

16,292

 

 

$

—

 

 

$

—

 

 

$

16,292

 

Commercial paper

 

 

1,998

 

 

 

—

 

 

 

—

 

 

 

1,998

 

Total cash equivalents

 

$

18,290

 

 

$

—

 

 

$

—

 

 

$

18,290

 

Marketable securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Commercial paper

 

$

31,766

 

 

$

—

 

 

$

—

 

 

$

31,766

 

Corporate debt securities

 

 

7,487

 

 

 

—

 

 

 

(8

)

 

 

7,479

 

Government securities

 

 

11,955

 

 

 

—

 

 

 

(1

)

 

 

11,954

 

Total marketable securities

 

$

51,208

 

 

$

—

 

 

$

(9

)

 

$

51,199