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Leases | 12 Months Ended
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Dec. 31, 2022
Leases |
Leases | (7) Leases The Company has operating leases of office, manufacturing and laboratory space, which have remaining lease terms of one to three years and may include one or more options to renew. During the years ended December 31, 2022, 2021, and 2020, the Company recorded right of use assets and lease liabilities of $2.5 million, $1.0 million and 1.9 million related to new leases and lease extensions, respectively. Operating lease expense was $1.9 million, $1.9 million and $2.3 million for years ended December 31, 2022, 2021 and 2020, respectively. Variable lease expense was $0.8 million, $0.7 million and $1.2 million for years ended December 31, 2022, 2021 and 2020, respectively.Cash paid for amounts included in the measurement of operating lease liabilities was $1.9 million, $1.8 million and $2.4 million for the years ended December 31, 2022, 2021 and 2020, respectively. As of December 31, 2022, the weighted-average remaining lease term was 2 years and the weighted-average discount rate was 10.0%, compared to a weighted-average remaining lease term of 2 years and weighted average discount rate of 10.0% as of December 31, 2021. Future minimum lease payments under non-cancellable leases as of December 31, 2022 were as follows: ​
​ | ​ | ​ | ​
2023 | ​ | $ | 1,776
2024 | ​ |  | 1,876
2025 | ​ |  | 896
Total lease payments | ​ |  | 4,548
Less imputed interest | ​ |  | (515)
Present value of operating lease liabilities | ​ | $ | 4,033
​

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI https://asc.fasb.org/subtopic&trid=77888251 + Details
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