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v3.22.1

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Mar. 31, 2022 | Dec. 31, 2020
Accounts Receivable |  |  |
Deferred DOE cost share liabilities | $ 10,237 | $ 10,237 | $ 0
In-process Research and Development |  |  |
Discount rate to assign in-process research and development | 20.00% |  |
Revenue Recognition |  |  |
Customer payments term | 30 days |  |

X
- Definition Represents the customer payments term. + References No definition available. + Details
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- Definition The carrying amount of deferred DOE cost share liabilities. + References No definition available. + Details
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- Definition Represents the discount rate to assign in-process research and development. + References No definition available. + Details
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