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Stockholders' Equity - Additional Information (Details) - USD ($) |  | 2 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jan. 22, 2020 | Mar. 31, 2020 | Sep. 30, 2021 | Dec. 31, 2020
Equity Class Of Treasury Stock [Line Items] |  |  |  |
Common stock, par value (in dollars per share) |  |  | $ 0.01 | $ 0.01
Open Market Sale Agreement [Member] | Jefferies LLC [Member] |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |
Common stock, par value (in dollars per share) | $ 0.01 |  |  |
Shares sold in the offering |  | 263,725 |  |
Price per share |  | $ 13.65 |  |
Amount raised through offering |  | $ 3,492,000 |  |
Brokerage charges |  | $ 108,000 |  |
Form S-3 and ATM registration costs |  |  | $ 238,000 |
Open Market Sale Agreement [Member] | Jefferies LLC [Member] | Maximum [Member] |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |
Aggregate offering price | $ 15,000,000 |  |  |

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