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Accrued Expenses and Other Liabilities (Tables)
9 Months Ended
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, 2020December 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 costs121,476 165,543 
Accrued make-whole for Pelen LLC (Note 21)— 222,602 
Accrued Board of Directors fees75,000 120,000 
Accrued vendor liabilities126,041 309,515 
Other accrued expenses59,646 139,930 
Total accrued expenses and other liabilities$449,871 $1,855,431