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Leases (Tables) | 9 Months Ended
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Sep. 30, 2021
Leases [Abstract] |
Schedule of lease information | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance Sheet Location | ​ | September 30, 2021 | ​ | December 31, 2020
Operating Leases | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Right-of-use asset | ​ | Operating lease right-of-use assets | ​ | $ | 8,024 | ​ | $ | 8,668
Short-term lease liabilities | ​ | Accrued expenses and other current liabilities | ​ | $ | 1,231 | ​ | $ | 1,231
Long-term lease liabilities | ​ | Operating lease noncurrent liabilities | ​ | $ | 7,647 | ​ | $ | 8,318
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other information | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average remaining lease term, operating lease | ​ | ​ | 7.7 years | ​ | ​ | 8.4 years
Weighted average discount rate, operating lease | ​ | ​ | 4.29% | ​ | ​ | 4.29%
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Schedule of future minimum facility lease payments | ​
​ | ​ | ​ | ​
​ | ​ | Operating Lease Payments
​ | ​ | as of September 30, 2021
Year Ending December 31: |  | ​ | ​
2021 |  | $ | 321
2022 | ​ |  | 1,286
2023 | ​ |  | 1,286
2024 | ​ | ​ | 1,326
2025 | ​ | ​ | 1,407
Thereafter | ​ |  | 4,807
Total undiscounted lease payments | ​ | $ | 10,433
Less: imputed interest | ​ | ​ | 1,555
Present value of lease liabilities | ​ | $ | 8,878
Less: current portion of operating lease liabilities | ​ | ​ | 1,231
Operating lease noncurrent liabilities | ​ | $ | 7,647
​

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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