XML 73 R31.htm IDEA: XBRL DOCUMENT
v3.22.1

Marketable Securities (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
Marketable Securities [Abstract] |  |
Schedule of Available-for-sale Marketable Securities | Available-for-sale marketable securities were as follows (in thousands):
|  | March 31, 2022 |
|  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Fair Value |
Commercial paper |  | $ | 50,904 |  |  | $ | — |  |  | $ | — |  |  | $ | 50,904 |
Corporate debt |  |  | 14,814 |  |  |  | 1 |  |  |  | (18 | ) |  |  | 14,797 |
U.S. government agency |  |  | 15,081 |  |  |  | — |  |  |  | (20 | ) |  |  | 15,061 |
Asset-backed securities |  |  | 3,013 |  |  |  | — |  |  |  | (6 | ) |  |  | 3,007 |
Total |  | $ | 83,812 |  |  | $ | 1 |  |  | $ | (44 | ) |  | $ | 83,769 |
|  | December 31, 2021 (1) |
|  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Fair Value |
Commercial paper |  | $ | 43,969 |  |  | $ | — |  |  | $ | — |  |  | $ | 43,969 |
Corporate debt |  |  | 17,084 |  |  |  | — |  |  |  | (12 | ) |  |  | 17,072 |
U.S. government agency |  |  | 5,056 |  |  |  | — |  |  |  | (3 | ) |  |  | 5,053 |
Asset-backed securities |  |  | 7,695 |  |  |  | — |  |  |  | (5 | ) |  |  | 7,690 |
Total |  | $ | 73,804 |  |  | $ | — |  |  | $ | (20 | ) |  | $ | 73,784 |
(1) | These items have been reclassified to conform to current period presentation.
| Available-for-sale marketable securities, which consisted entirely of corporate bonds, were as follows (in thousands):
|  | December 31, 2021 |
Amortized costs |  | $ | 73,804 |
Gross unrealized gains |  |  | — |
Gross unrealized loss |  |  | (20 | )
Fair value |  | $ | 73,784 |

X
- References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration