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Accrued Expenses and Other Liabilities - Schedule of Accrued Expenses (Details) - USD ($) | Sep. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Related Party Transaction [Line Items] |  |  |
Make-whole liability | $ 0 | $ 384,873 |
Accrued interest expense | 0 |  | $ 264,268
Accrued Northern Comstock LLC payments (Note 20) | 67,708 |  | 180,833
Accrued payroll costs | 121,476 |  | 165,543
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
Mercury Clean Up LLC |  |  |
Related Party Transaction [Line Items] |  |  |
Make-whole liability | 0 |  | 452,740
Member of Pelen, LLC |  |  |
Related Party Transaction [Line Items] |  |  |
Make-whole liability | $ 0 |  | $ 222,602

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