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Accrued Expenses and Other Current Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2019
Payables and Accruals [Abstract] |
Schedule of Accrued Expenses and Other Current Liabilities | Accrued expenses and other liabilities consisted of the following:
| March 31, 2019 |  | December 31, 2018
Advance deposits on Membership Interest Purchase Agreement (Note 15) | $ | 1,950,000 |  |  | $ | — |
Accrued Northern Comstock Joint Venture | 293,958 |  |  | 180,833 |
Accrued insurance liabilities | 239,176 |  |  | 341,680 |
Accrued interest expense | 204,658 |  |  | 481,946 |
Accrued payroll costs | 153,482 |  |  | 140,915 |
Accrued liability for purchase of DTSS (Note 15) | 120,000 |  |  | 185,000 |
Accrued Board of Directors fees | 20,000 |  |  | 20,000 |
Accrued make-whole for Pelen LLC (Note 15) | — |  |  | 135,162 |
Accrued personal property tax | — |  |  | 74,434 |
Other accrued expenses | 121,863 |  |  | 114,763 |
Total accrued expenses and other liabilities | $ | 3,103,137 |  |  | $ | 1,674,733 |

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