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Commitments and Contingencies (Tables) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract] |  |
Schedule of Lease Costs | The elements of the Company’s lease costs were as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Six Months Ended June 30,
​ |  | 2025 |  | 2024
Operating lease cost | ​ | $ | 1,512 | ​ | $ | 3,154
Finance lease cost: | ​ |  |  | ​ |  |
Amortization of lease assets | ​ |  | 439 | ​ |  | 1,008
Interest on lease liabilities | ​ |  | 31 | ​ |  | 159
Total finance lease cost | ​ |  | 470 | ​ |  | 1,167
Variable lease cost | ​ |  | 209 | ​ |  | 672
​ | ​ | ​ | ​ | ​ | ​ | ​
Total lease cost | ​ | $ | 2,191 | ​ | $ | 4,993
| The elements of the lease costs were as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ |  | 2024 |  | 2023
Operating lease cost | ​ | $ | 5,245 | ​ | $ | 5,774
Finance lease cost: | ​ |  |  | ​ |  |
Amortization of lease assets | ​ |  | 1,584 | ​ |  | 1,187
Interest on lease liabilities | ​ |  | 217 | ​ |  | 139
Total finance lease cost | ​ |  | 1,801 | ​ |  | 1,326
Variable lease cost | ​ |  | 1,071 | ​ |  | 1,733
Short term lease cost | ​ |  | 671 | ​ |  | —
Total lease cost | ​ | $ | 8,788 | ​ | $ | 8,833
Schedule of Lease Term and Discount Rate Information | Lease term and discount rate information related to leases was as follows:
​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, | ​
​ |  | 2025 |  | 2024 | ​
Weighted-average remaining lease term (in years) |  |  |  |  | ​
Operating leases |  | 2.5 |  | 2.5 | ​
Finance leases |  | 0.3 |  | 1.4 | ​
Weighted-average discount rate |  |  |  |  | ​
Operating leases |  | 10.0 | % | 9.8 | %
Finance leases |  | 9.0 | % | 9.0 | %
| Lease term and discount rate information related to leases was as follows:
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, |
​ |  | 2024 |  | 2023 |
Weighted-average remaining lease term (in years) |  |  |  |  | ​
Operating leases |  | 2.7 |  | 2.6 | ​
Finance leases |  | 0.8 |  | 1.5 | ​
Weighted-average discount rate |  |  |  |  | ​
Operating leases |  | 9.9 | % | 9.8 | %
Finance leases |  | 9.0 | % | 9.0 | %
Schedule of Supplemental Cash Flow Information | Supplemental cash flow information was as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Six Months Ended June 30,
​ |  | 2025 |  | 2024
Cash paid for amounts included in the measurement of lease liabilities: |  | ​ |  |  | ​ |
Operating cash used in operating leases | ​ | $ | 927 | ​ | $ | 3,203
Operating cash used in finance leases | ​ | $ | 31 | ​ | $ | 159
Financing cash used in finance leases | ​ | $ | 576 | ​ | $ | 906
| Supplemental cash flow information was as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended
​ | ​ | December 31,
​ |  | 2024 |  | 2023
Cash paid for amounts included in the measurement of lease liabilities: |  | ​ |  |  | ​ |
Operating cash used in operating leases | ​ | $ | 5,807 | ​ | $ | 5,764
Operating cash used in finance leases | ​ | $ | 217 | ​ | $ | 139
Financing cash used in finance leases | ​ | $ | 1,429 | ​ | $ | 1,301
Schedule of Future Maturities of Lease Liabilities | Future maturities of lease liabilities were as follows as of June 30, 2025 (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Operating |  | Finance
​ | ​ | Leases | ​ | Leases
Fiscal year ending: |  | ​ |  |  | ​ |
2025 (remaining six months) | ​ | $ | 671 | ​ | $ | 336
2026 | ​ |  | 226 | ​ |  | 20
2027 | ​ |  | 233 | ​ |  | —
2028 | ​ |  | 240 | ​ |  | —
2029 | ​ |  | 184 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​
Total future minimum payments | ​ |  | 1,554 | ​ |  | 356
Less imputed interest | ​ |  | (203) | ​ |  | (7)
Present value of lease liabilities | ​ | $ | 1,351 | ​ | $ | 349
| Future maturities of lease liabilities were as follows as of December 31, 2024 (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Operating |  | Finance
​ | ​ | Leases | ​ | Leases
Fiscal year ending: |  | ​ |  |  | ​ |
2025 | ​ | $ | 927 | ​ | $ | 942
2026 | ​ |  | 225 | ​ |  | 21
2027 | ​ |  | 233 | ​ |  | —
2028 | ​ |  | 240 | ​ |  | —
2029 | ​ |  | 184 | ​ |  | —
Thereafter | ​ |  | — | ​ |  | —
Total future minimum payments | ​ |  | 1,809 | ​ |  | 963
Less imputed interest | ​ |  | (253) | ​ |  | (38)
Present value of lease liabilities | ​ | $ | 1,556 | ​ | $ | 925

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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability and finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References No definition available. + Details
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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 -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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