XML 22 R12.htm IDEA: XBRL DOCUMENT v3.24.3
Marketable Securities
 9 Months Ended
Sep. 30, 2024
Marketable Securities  
Marketable Securities

6.

Marketable Securities

​

Marketable securities available for sale, were as follows (in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

September 30, 2024

​

​

​

​

Gross

​

Gross

​

Estimated

​

​

Amortized

​

Unrealized

​

Unrealized

​

Market

​

    

Cost

    

Gains

    

Losses

    

Value

Commercial Paper

​

$

7,439

​

$

4

​

$

—

​

$

7,443

Government and agency securities

​

​

39,902

​

​

30

​

​

—

​

​

39,932

Total

​

$

47,341

​

$

34

​

$

—

​

$

47,375

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2023

​

​

​

​

Gross

​

Gross

​

Estimated

​

​

Amortized

​

Unrealized

​

Unrealized

​

Market

​

    

Cost

    

Gains

    

Losses

    

Value

Commercial Paper

​

$

7,598

​

$

—

​

$

—

​

$

7,598

Corporate debt securities

​

​

7,980

​

​

1

​

​

—

​

​

7,981

Government and agency securities

​

​

18,180

​

​

—

​

​

(12)

​

​

18,168

Total

​

$

33,758

​

$

1

​

$

(12)

​

$

33,747

​

The following are the scheduled maturities as of September 30, 2024 (in thousands):

​

​

​

​

​

​

​

​

​

​

Net

​

Fair

​

​

Carrying Amount

​

Value

2024 (remaining three months)

    

$

47,341

​

$

47,375

Total

    

$

47,341

​

$

47,375

​

The Company periodically reviews its portfolio of debt securities to determine if any investment is impaired due to credit loss or other potential valuation concerns. For debt securities where the fair value of the investment is less than the amortized cost basis, the Company assesses at the individual security level, for various quantitative factors including, but not limited to, the nature of the investments, changes in credit ratings, interest rate fluctuations, industry analyst reports, and the severity of impairment. Unrealized losses on available-for-sale securities at September 30, 2024 were not significant and were primarily due to changes in interest rates and not due to increased credit risk associated with specific securities. The Company does not intend to sell these impaired investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost bases, which may be at maturity.