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Certain Balance Sheet Items - Accounts Payable and Accrued Expenses (Details) - USD ($) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 | Jul. 31, 2022 | Dec. 31, 2021 | Mar. 09, 2021
Accounts Payable and Accrued Expenses [Line Items] |  |  |  |
Accounts Payable, Trade | $ 19,862,487 |  | $ 27,424,743 |
Accrued Salaries, Current | 12,574,921 |  | 16,112,912 |
Accrued litigation settlement | 44,000,000 |  | 0 |
Other Accrued Liabilities | 3,249,477 |  | 4,106,875 |
Accounts payable and accrued liabilities | 79,686,885 |  | $ 47,644,530 |
McDermid v. Inovio Pharmaceuticals, Inc. and J. Joseph Kim |  |  |  |
Accounts Payable and Accrued Expenses [Line Items] |  |  |  |
Estimate of cash settlement |  | $ 30,000,000 |  | $ 30,000,000
Estimate of shares settlement |  | $ 14,000,000 |  | $ 14,000,000
Amount paid to other party | $ 252,000 |  |  |

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