XML 32 R23.htm IDEA: XBRL DOCUMENT
v3.22.1

Cash, Cash Equivalents and Short-Term Investments (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2022
Cash and Cash Equivalents [Abstract] |
Schedule of cash, cash equivalents and short-term investments |
|  | March 31, 2022 |  |  | December 31, 2021 |
Cash and cash equivalents: |  |  |  |  |  |
Cash |  | $ | 2,426 |  |  | $ | 845 |
Money market funds |  |  | 16,016 |  |  |  | 16,830 |
Total cash and cash equivalents |  | $ | 18,442 |  |  | $ | 17,675 |
Short-term investments: |  |  |  |  |  |  |  |
Certificates of deposit |  | $ | 249 |  |  | $ | 250 |
Commercial paper |  |  | 548 |  |  |  | 2,210 |
Corporate notes |  |  | 7,998 |  |  |  | 12,024 |
Municipal bonds |  |  | 452 |  |  |  | 1,437 |
Total short-term investments |  | $ | 9,247 |  |  | $ | 15,921 |
Schedule of contractual maturities of short-term investments |
|  | March 31, 2022 |
Due within one year |  | $ | 249 |
Due after one year through five years |  |  | 8,998 |
Total |  | $ | 9,247 |
Schedule of unrealized gains and losses related to short-term investments |
|  | March 31, 2022 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Aggregate Estimated Fair Value |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit |  | $ | 249 |  |  | $ | — |  |  | $ | — |  |  | $ | 249 |
Commercial paper |  |  | 548 |  |  |  | — |  |  |  |  |  |  |  | 548 |
Corporate notes |  |  | 8,028 |  |  |  | — |  |  |  | (30 | ) |  |  | 7,998 |
Municipal bonds |  |  | 452 |  |  |  | — |  |  |  | — |  |  |  | 452 |
Total short-term investments |  | $ | 9,277 |  |  | $ | — |  |  | $ | (30 | ) |  | $ | 9,247 |
|  | December 31, 2021 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Aggregate Estimated Fair Value |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit |  | $ | 250 |  |  | $ | — |  |  | $ | — |  |  | $ | 250 |
Commercial paper |  |  | 2,210 |  |  |  | — |  |  |  | — |  |  |  | 2,210 |
Corporate notes |  |  | 12,035 |  |  |  | — |  |  |  | (11 | ) |  |  | 12,024 |
Municipal bonds |  |  | 1.437 |  |  |  | — |  |  |  | — |  |  |  | 1,437 |
Total short-term investments |  | $ | 15,932 |  |  | $ | — |  |  | $ | (11 | ) |  | $ | 15,921 |

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

X
- Definition The entire disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 + Details
Name: | us-gaap_CashCashEquivalentsAndShortTermInvestmentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of unrealized gains and losses on investments. + References No definition available. + Details
Name: | us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration