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v3.23.3

Summary of significant accounting policies (Tables) | 9 Months Ended
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Sep. 30, 2023
Accounting Policies [Abstract] |
Reconciliation of cash | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | End of |  | ​ | Beginning of
​ |  | period- |  | period-
​ |  | September 30, |  | December 31,
​ |  | 2023 | ​ | 2022
Cash and cash equivalents | ​ | $ | 165,157 | ​ | $ | 279,834
Restricted cash included in deposits and other assets | ​ |  | 16,253 | ​ |  | 16,091
Total Cash, cash equivalents and restricted cash per statement of cash flows | ​ | $ | 181,410 | ​ | $ | 295,925
Schedule of Inventory | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2023 |  | December 31, 2022
Raw materials | ​ | $ | 907 | ​ | $ | 1,078
Work in progress | ​ |  | 24,595 | ​ |  | 14,074
Finished goods | ​ |  | 10,250 | ​ |  | 6,656
Total inventory | ​ | $ | 35,752 | ​ | $ | 21,808

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