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Stockholders' Equity - Summary of Recognized Share-based Compensation Cost (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |
Share-based compensation (Income) expense | $ 3,505 | $ 273
Selling, General and Administrative [Member] |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |
Share-based compensation (Income) expense | 2,304 | 214
Research and Development [Member] |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |
Share-based compensation (Income) expense | 1,110 | $ 59
Cost of Goods Sold [Member] |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |
Share-based compensation (Income) expense | $ 91 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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