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Supplementary Balance Sheet Information (Tables)
 9 Months Ended
Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Investments Available-for-sale

Investments available for sale consisted of the following:

 

 

As of September 30, 2024

 

(in thousands)

 

Amortized Cost

 

 

Gross Unrealized Gains

 

 

Gross Unrealized Losses

 

 

Fair Market Value

 

Maturity less than 1 year:

 

 

 

 

 

 

 

 

 

 

 

 

Certificate of deposit

 

$

334

 

 

$

—

 

 

$

—

 

 

$

334

 

Corporate debt securities

 

 

16,213

 

 

 

36

 

 

 

(2

)

 

 

16,247

 

Commercial paper

 

 

308

 

 

 

2

 

 

 

—

 

 

 

310

 

U.S. treasury securities

 

 

18,896

 

 

 

8

 

 

 

(10

)

 

 

18,894

 

Total maturity less than 1 year

 

 

35,751

 

 

 

46

 

 

 

(12

)

 

 

35,785

 

Maturity 1 to 2 years:

 

 

 

 

 

 

 

 

 

 

 

 

Corporate debt securities

 

 

8,796

 

 

 

49

 

 

 

(1

)

 

 

8,844

 

Total maturity 1 to 2 years

 

 

8,796

 

 

 

49

 

 

 

(1

)

 

 

8,844

 

 

 

 

 

 

 

 

 

 

 

 

 

Total short-term investments

 

$

44,547

 

 

$

95

 

 

$

(13

)

 

$

44,629

 

 

 

 

As of December 31, 2023

 

(in thousands)

 

Amortized Cost

 

 

Gross Unrealized Gains

 

 

Gross Unrealized Losses

 

 

Fair Market Value

 

Maturity less than 1 year:

 

 

 

 

 

 

 

 

 

 

 

 

Certificate of deposit

 

$

8,317

 

 

$

16

 

 

$

—

 

 

$

8,333

 

Corporate debt securities

 

 

10,948

 

 

 

8

 

 

 

(16

)

 

 

10,940

 

Commercial paper

 

 

6,193

 

 

 

9

 

 

 

—

 

 

 

6,202

 

U.S. government agencies

 

 

835

 

 

 

—

 

 

 

(1

)

 

 

834

 

Total maturity less than 1 year

 

 

26,293

 

 

 

33

 

 

 

(17

)

 

 

26,309

 

Maturity 1 to 2 years:

 

 

 

 

 

 

 

 

 

 

 

 

Corporate debt securities

 

 

8,437

 

 

 

6

 

 

 

(10

)

 

 

8,433

 

U.S. treasury securities

 

 

18,505

 

 

 

—

 

 

 

(79

)

 

 

18,426

 

Total maturity 1 to 2 years

 

 

26,942

 

 

 

6

 

 

 

(89

)

 

 

26,859

 

 

 

 

 

 

 

 

 

 

 

 

 

Total short-term investments

 

$

53,235

 

 

$

39

 

 

$

(106

)

 

$

53,168

 
Investments Available-for-sale in a Continuous Unrealized Loss Position

Investments available for sale that have been in a continuous unrealized loss position for greater than one-year consisted of the following:

 

 

As of September 30, 2024

 

(in thousands)

 

Fair Market Value

 

 

Gross Unrealized Loss

 

Total

 

$

—

 

 

$

—

 

 

 

As of December 31, 2023

 

(in thousands)

 

Fair Market Value

 

 

Gross Unrealized Loss

 

Corporate debt securities

 

$

397

 

 

$

(3

)
Schedule of Components of Property and Equipment

Property and equipment consisted of the following:

 

(in thousands)

 

As of September 30,
2024

 

 

As of December 31,
2023

 

Furniture and office equipment

 

$

1,067

 

 

$

1,067

 

Leasehold improvements

 

 

2,568

 

 

 

2,568

 

Laboratory equipment

 

 

1,414

 

 

 

1,355

 

Property and equipment, gross

 

 

5,049

 

 

 

4,990

 

Less—accumulated depreciation and amortization

 

 

(4,056

)

 

 

(3,752

)

Property and equipment, net

 

$

993

 

 

$

1,238

 
Schedule of Accrued Liabilities

Accrued liabilities consisted of the following:

 

(in thousands)

 

As of September 30,
2024

 

 

As of December 31,
2023

 

Clinical trials

 

$

4,271

 

 

$

4,309

 

Accrued compensation

 

 

1,993

 

 

 

2,737

 

Research agreements and services

 

 

637

 

 

 

530

 

Other accrued liabilities

 

 

274

 

 

 

207

 

Total accrued liabilities

 

$

7,175

 

 

$

7,783