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Investments Available for Sale (Tables)
 9 Months Ended
Sep. 27, 2024
Investments, Debt and Equity Securities [Abstract]  
Summary of Investments Available for Sale and Related Fair Value Measurement

Investments available for sale (“AFS”) and the related fair value measurement consisted of the following (dollars in thousands):

 

 

 

September 27, 2024

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fair Value Measurements

 

 

 

Amortized Cost

 

 

Unrealized Gains

 

 

Unrealized Losses

 

 

Estimated Fair Value

 

 

Level 1

 

 

Level 2

 

Commercial paper

 

$

10,582

 

 

$

10

 

 

$

(1

)

 

$

10,591

 

 

$

—

 

 

$

10,591

 

Certificates of deposit

 

 

253

 

 

 

1

 

 

 

—

 

 

 

254

 

 

 

—

 

 

 

254

 

U.S. Treasury securities

 

 

10,089

 

 

 

4

 

 

 

(6

)

 

 

10,087

 

 

 

10,087

 

 

 

—

 

U.S. agency securities

 

 

405

 

 

 

—

 

 

 

—

 

 

 

405

 

 

 

—

 

 

 

405

 

Corporate debt securities

 

 

50,566

 

 

 

57

 

 

 

(5

)

 

 

50,618

 

 

 

—

 

 

 

50,618

 

Total investments AFS

 

$

71,895

 

 

$

72

 

 

$

(12

)

 

$

71,955

 

 

$

10,087

 

 

$

61,868

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 29, 2023

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fair Value Measurements

 

 

 

Amortized Cost

 

 

Unrealized Gains

 

 

Unrealized Losses

 

 

Estimated Fair Value

 

 

Level 1

 

 

Level 2

 

Commercial paper

 

$

7,720

 

 

$

9

 

 

$

—

 

 

$

7,729

 

 

$

—

 

 

$

7,729

 

Certificates of deposit

 

 

3,716

 

 

 

4

 

 

 

—

 

 

 

3,720

 

 

 

—

 

 

 

3,720

 

U.S. Treasury securities

 

 

23,036

 

 

 

3

 

 

 

(56

)

 

 

22,983

 

 

 

22,983

 

 

 

—

 

U.S. agency securities

 

 

3,423

 

 

 

—

 

 

 

(4

)

 

 

3,419

 

 

 

—

 

 

 

3,419

 

Corporate debt securities

 

 

11,538

 

 

 

12

 

 

 

(10

)

 

 

11,540

 

 

 

—

 

 

 

11,540

 

Total investments AFS

 

$

49,433

 

 

$

28

 

 

$

(70

)

 

$

49,391

 

 

$

22,983

 

 

$

26,408

 
Summary of Fair Value of Investments Available for Sale by Contractual Maturity

The following table shows the fair value of investments AFS by contractual maturity (dollars in thousands):

 

 

 

As of September 27, 2024

 

 

 

Within one year

 

 

After one year through five years

 

 

 

Total

 

Commercial paper

 

$

10,591

 

 

$

—

 

 

 

$

10,591

 

Certificates of deposit

 

 

254

 

 

 

—

 

 

 

 

254

 

U.S. Treasury securities

 

 

10,087

 

 

 

—

 

 

 

 

10,087

 

U.S. agency securities

 

 

405

 

 

 

—

 

 

 

 

405

 

Corporate debt securities

 

 

50,618

 

 

 

—

 

 

 

 

50,618

 

Total investments AFS

 

$

71,955

 

 

$

—

 

 

 

$

71,955