Reclamation Bond Deposit - Schedule of Reclamation Bond Deposit (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Loss Contingencies [Line Items]
Total reclamation bond deposit	$ 2,622,544	$ 2,642,804
Lexon surety bond cash collateral
Loss Contingencies [Line Items]
Total reclamation bond deposit	2,500,000	2,500,000
Other cash reclamation bond deposits
Loss Contingencies [Line Items]
Total reclamation bond deposit	$ 122,544	$ 142,804