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Summary of significant accounting policies - (Tables) | 6 Months Ended
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Jun. 30, 2020
Accounting Policies [Abstract] |
Reconciliation of cash | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheet that sum to the total of the same amounts shown in the statement of cash flows:
|  | Beginning of period- December 31, 2019 |  | End of period- June 30, 2020
Cash and cash equivalents |  | $ | 288,028 |  |  | $ | 158,461 |
Restricted cash included in deposits and other assets |  | 7,500 |  |  | 7,500 |
Total Cash, cash equivalents and restricted cash per statement of cash flows |  | $ | 295,528 |  |  | $ | 165,961 |
Schedule of Inventory | The following table summarizes the components of the Company’s inventory for the periods indicated:
|  | June 30, 2020 |  | December 31, 2019
Raw materials |  | $ | 877 |  |  | $ | 874 |
Work in progress |  | 8,666 |  |  | 9,652 |
Finished goods |  | 8,830 |  |  | 8,759 |
Total inventory |  | $ | 18,373 |  |  | $ | 19,285 |

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