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Stock-Based Compensation - Summary of Activity for Service-based Stock Options (Details) - Service Based Stock Options - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
2019 Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of Options and Unvested Shares, beginning balance 3,319,711  
Number of Options and Unvested Shares, granted 1,384,958  
Number of Options and Unvested Shares, exercised (136,215)  
Number of Options and Unvested Shares, cancelled / forfeited (1,154,504)  
Number of Options and Unvested Shares, ending balance 3,413,950 3,319,711
Number of Options and Unvested Shares, vested and expected to vest 3,413,950  
Number of Options and Unvested Shares, exercisable 1,506,826  
Weighted Average Exercise Price, beginning balance $ 16.07  
Weighted Average Exercise Price, granted 0.87  
Weighted Average Exercise Price, exercised 0.41  
Weighted Average Exercise Price, exercised, cancelled / forfeited 12.12  
Weighted Average Exercise Price, ending balance 11.86 $ 16.07
Weighted Average Exercise Price, vested and expected to vest 11.86  
Weighted Average Exercise Price, exercisable $ 22.80  
Weighted average remaining contractual life 6 years 8 months 26 days 4 years 9 months 7 days
Weighted average remaining contractual life, vested and expected to vest 6 years 8 months 26 days  
Weighted average remaining contractual life, exercisable 3 years 2 months 15 days  
Aggregate intrinsic value $ 952 $ 65
Aggregate intrinsic value, exercised 104  
Aggregate intrinsic value, vested and expected to vest 952  
Aggregate intrinsic value, exercisable $ 174  
2022 Inducement Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of Options and Unvested Shares, beginning balance 3,742,255  
Number of Options and Unvested Shares, cancelled / forfeited (38,500)  
Number of Options and Unvested Shares, ending balance 3,703,755 3,742,255
Number of Options and Unvested Shares, vested and expected to vest 3,703,755  
Weighted Average Exercise Price, beginning balance $ 2.98  
Weighted Average Exercise Price, exercised, cancelled / forfeited 2.98  
Weighted Average Exercise Price, ending balance 2.98 $ 2.98
Weighted Average Exercise Price, vested and expected to vest $ 2.98  
Weighted average remaining contractual life 9 years 1 month 20 days 9 years 4 months 20 days
Weighted average remaining contractual life, vested and expected to vest 9 years 1 month 20 days  
Novosteo    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of Options and Unvested Shares, beginning balance 503,105  
Number of Options and Unvested Shares, cancelled / forfeited (28,764)  
Number of Options and Unvested Shares, ending balance 474,341 503,105
Number of Options and Unvested Shares, vested and expected to vest 474,341  
Number of Options and Unvested Shares, exercisable 118,582  
Weighted Average Exercise Price, beginning balance $ 0.55  
Weighted Average Exercise Price, exercised, cancelled / forfeited 0.55  
Weighted Average Exercise Price, ending balance 0.55 $ 0.55
Weighted Average Exercise Price, vested and expected to vest 0.55  
Weighted Average Exercise Price, exercisable $ 0.55  
Weighted average remaining contractual life 8 years 9 months 3 days 9 years 2 months 23 days
Weighted average remaining contractual life, vested and expected to vest 8 years 9 months 3 days  
Weighted average remaining contractual life, exercisable 8 years 9 months 3 days  
Aggregate intrinsic value $ 479 $ 44
Aggregate intrinsic value, vested and expected to vest 479  
Aggregate intrinsic value, exercisable $ 120