Short-term investments, which are classified as available-for-sale, consisted of the following:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at March 31, 2022: |
|
Amortized
Cost Basis |
|
|
Unrealized
Loss |
|
|
Fair
Value |
|
|
|
(in thousands) |
|
Treasury notes |
|
$ |
12,054 |
|
|
$ |
(15 |
) |
|
$ |
12,039 |
|
Treasury bills |
|
|
47,923 |
|
|
|
(21 |
) |
|
|
47,902 |
|
Commercial paper |
|
|
63,725 |
|
|
|
(1 |
) |
|
|
63,724 |
|
Corporate debt securities |
|
|
21,196 |
|
|
|
(59 |
) |
|
|
21,137 |
|
Total short-term investments |
|
$ |
144,898 |
|
|
$ |
(96 |
) |
|
$ |
144,802 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at December 31, 2021: |
|
Amortized
Cost Basis |
|
|
Unrealized
Loss |
|
|
Fair
Value |
|
|
|
(in thousands) |
|
Commercial paper |
|
$ |
33,979 |
|
|
$ |
(1 |
) |
|
$ |
33,978 |
|
Corporate debt securities |
|
|
11,953 |
|
|
|
(4 |
) |
|
|
11,949 |
|
Total short-term investments |
|
$ |
45,932 |
|
|
$ |
(5 |
) |
|
$ |
45,927 |
|
|