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Long-Term Reclamation Liability | 6 Months Ended
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Jun. 30, 2018
Asset Retirement Obligation Disclosure [Abstract] |
Long-Term Reclamation Liability | Retirement Obligation Asset Following is a reconciliation of the aggregate retirement obligation asset associated with our reclamation plan for our mining projects:
| Six Months Ended |  | Twelve Months Ended
| June 30, 2018 |  | December 31, 2017
Retirement obligation asset — beginning of period | $ | 282,745 |  |  | $ | 617,126 |
Additional obligations incurred | — |  |  | — |
Amortization of retirement obligation asset | (36,435 | ) |  | (334,381 | )
Retirement obligation asset — end of period | $ | 246,310 |  |  | $ | 282,745 |
Long-Term Reclamation Liability Following is a reconciliation of the aggregate reclamation liability associated with our reclamation plan for our mining projects:
| Six Months Ended |  | Twelve Months Ended
| June 30, 2018 |  | December 31, 2017
Long-term reclamation liability — beginning of period | $ | 7,417,680 |  |  | $ | 7,353,346 |
Additional obligations incurred | — |  |  | — |
Accretion of reclamation liability | 11,054 |  |  | 64,334 |
Long-term reclamation liability — end of period | $ | 7,428,734 |  |  | $ | 7,417,680 |

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- References No definition available. + Details
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- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2175671 + Details
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