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Long-Term Reclamation Liability and Retirement Obligation Asset (Tables) | 6 Months Ended
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Jun. 30, 2016
Asset Retirement Obligation Disclosure [Abstract] |
Schedule of Other Noncurrent Liabilities | Following is a reconciliation of the aggregate reclamation liability associated with our reclamation plan for our mining projects:
| June 30, 2016 |  | December 31, 2015
Long-term reclamation liability — beginning of period | $ | 6,827,568 |  |  | $ | 5,908,700 |
Additional obligations incurred | — |  |  | 659,295 |
Accretion of reclamation liability | 92,890 |  |  | 259,573 |
Long-term reclamation liability — end of period | $ | 6,920,458 |  |  | $ | 6,827,568 |
Schedule of Asset Retirement Obligations | Following is a reconciliation of the aggregate retirement obligation asset associated with our reclamation plan for our mining projects:
| June 30, 2016 |  | December 31, 2015
Retirement obligation asset — beginning of period | $ | 1,107,120 |  |  | $ | 1,619,101 |
Additional obligations incurred | — |  |  | 659,295 |
Amortization of retirement obligation asset | (414,997 | ) |  | (1,171,276 | )
Retirement obligation asset — end of period | $ | 692,123 |  |  | $ | 1,107,120 |

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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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