XML 25 R17.htm IDEA: XBRL DOCUMENT v3.23.3
Investments (Tables)
 9 Months Ended
Sep. 30, 2023
Investments [Abstract]  
Investments consists of available-for-sale securities

Investments consists of available-for-sale securities as follows (in thousands):

 

 

 

September 30, 2023

 

 

 

Amortized Cost

 

 

Unrealized Gain

 

 

Unrealized Loss

 

 

Estimated Fair Value

 

Short-term marketable securities:

 

 

 

 

 

 

 

 

 

 

 

 

U.S. Treasury securities

 

$

31,746

 

 

$

—

 

 

$

(9

)

 

$

31,737

 

Commercial paper

 

 

3,222

 

 

 

—

 

 

 

—

 

 

 

3,222

 

Corporate bonds

 

 

2,000

 

 

 

—

 

 

 

—

 

 

 

2,000

 

U.S. government agency debt securities

 

 

13,123

 

 

 

—

 

 

 

(2

)

 

 

13,121

 

Total short-term marketable securities

 

$

50,091

 

 

$

—

 

 

$

(11

)

 

$

50,080

 

 

 

 

December 31, 2022

 

 

 

Amortized Cost

 

 

Unrealized Gain

 

 

Unrealized Loss

 

 

Estimated Fair Value

 

Short-term marketable securities:

 

 

 

 

 

 

 

 

 

 

 

 

U.S. Treasury securities

 

$

30,628

 

 

$

—

 

 

$

(177

)

 

$

30,451

 

Commercial paper

 

 

29,543

 

 

 

—

 

 

 

—

 

 

 

29,543

 

Corporate bonds

 

 

16,815

 

 

 

—

 

 

 

(189

)

 

 

16,626

 

U.S. government agency debt securities

 

 

3,353

 

 

 

8

 

 

 

—

 

 

 

3,361

 

Total short-term marketable securities

 

$

80,339

 

 

$

8

 

 

$

(366

)

 

$

79,981

 

 

 
Investments in a continual unrealized loss position

Investments in a continual unrealized loss position for less than 12 months consist of the following (in thousands):

 

 

 

September 30, 2023

 

 

December 31, 2022

 

 

 

Fair Value

 

 

Fair Value

 

U.S. Treasury securities

 

$

21,777

 

 

$

26,506

 

Corporate bonds

 

 

—

 

 

 

1,977

 

U.S. government agency debt securities

 

 

7,924

 

 

 

—

 

Total available-for-sale securities

 

$

29,701

 

 

$

28,483

 

 

Investments in a continual unrealized loss position for greater than 12 months consist of the following (in thousands):

 

 

 

December 31, 2022

 

 

 

Fair Value

 

Corporate bonds

 

$

14,649

 

U.S. Treasury securities

 

 

3,945

 

Total available-for-sale securities

 

$

18,594