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v3.22.1

Paycheck Protection Program Loan (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Apr. 30, 2020
Short-term Debt [Line Items] |  |
Gain on forgiveness of PPP loan | $ 186 |
Paycheck Protection Program Loan |  |
Short-term Debt [Line Items] |  |
Aggregate principal amount |  | $ 186
Bore interest rate |  | 1.00%
Gain on forgiveness of PPP loan | $ 186 |

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