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v3.22.1

Summary of Significant Accounting Policies - Financial Instruments Measured at Fair Value (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021
--- | --- | --- | ---
Liabilities: |  |  |
Warrant liability | $ 3,818 | $ 3,605 | $ 4,443
Fair Value, Recurring |  |  |
Assets: |  |  |
Digital assets | 24,244 | 32,581 |
Total | 24,244 | 32,581 |
Liabilities: |  |  |
Warrant liability | 3,818 | 3,605 |
Total | 3,818 | 3,605 |
Level 1 | Fair Value, Recurring |  |  |
Assets: |  |  |
Digital assets | 24,244 | 32,581 |
Total | 24,244 | 32,581 |
Liabilities: |  |  |
Warrant liability | 0 | 0 |
Total | 0 | 0 |
Level 2 | Fair Value, Recurring |  |  |
Assets: |  |  |
Digital assets | 0 | 0 |
Total | 0 | 0 |
Liabilities: |  |  |
Warrant liability | 3,818 | 3,605 |
Total | 3,818 | 3,605 |
Level 3 | Fair Value, Recurring |  |  |
Assets: |  |  |
Digital assets | 0 | 0 |
Total | 0 | 0 |
Liabilities: |  |  |
Warrant liability | 0 | 0 |
Total | $ 0 | $ 0 |

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- Definition Fair value portion of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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