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Accrued Expenses and Other Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2020
Payables and Accruals [Abstract] |
Schedule of Accrued Expenses and Other Liabilities | Accrued expenses and other liabilities consisted of the following:
| September 30, 2020 |  | December 31, 2019
Accrued make-whole for Mercury Clean Up LLC (Note 22) | $ | — |  |  | $ | 452,740 |
Accrued interest expense | — |  |  | 264,268 |
Accrued Northern Comstock LLC payments (Note 20) | 67,708 |  |  | 180,833 |
Accrued payroll costs | 121,476 |  |  | 165,543 |
Accrued make-whole for Pelen LLC (Note 21) | — |  |  | 222,602 |
Accrued Board of Directors fees | 75,000 |  |  | 120,000 |
Accrued vendor liabilities | 126,041 |  |  | 309,515 |
Other accrued expenses | 59,646 |  |  | 139,930 |
Total accrued expenses and other liabilities | $ | 449,871 |  |  | $ | 1,855,431 |

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