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Stockholders' Equity - Preferred Stock (Details) - USD ($) | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Class of Stock [Line Items] |  |
Shares designated (in shares) | 20,000,000 | 20,000,000
Series A Convertible Preferred Stock |  |
Class of Stock [Line Items] |  |
Par value (in dollars per share) | $ 0.001 |
Shares designated (in shares) | 277,100 |
Liquidation preference | $ 606,000 |
Shares outstanding (in shares) | 60,600 | 60,600
Series B Convertible Preferred Stock |  |
Class of Stock [Line Items] |  |
Par value (in dollars per share) | $ 0.001 |
Shares designated (in shares) | 8,860 |
Shares outstanding (in shares) | 0 | 0
Series C Convertible Preferred Stock |  |
Class of Stock [Line Items] |  |
Par value (in dollars per share) | $ 0.001 |
Shares designated (in shares) | 200,000 |
Shares outstanding (in shares) | 0 | 0
Series D Convertible Preferred Stock |  |
Class of Stock [Line Items] |  |
Par value (in dollars per share) | $ 0.0001 |
Shares designated (in shares) | 154,670 |
Shares outstanding (in shares) | 0 | 0
Series E Convertible Preferred Stock |  |
Class of Stock [Line Items] |  |
Par value (in dollars per share) | $ 0.001 |
Shares designated (in shares) | 865,824 |
Shares outstanding (in shares) | 655,044 | 655,044

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