XML 43 R27.htm IDEA: XBRL DOCUMENT v3.19.2

Retirement Obligation Asset (Tables)

3 Months Ended

Mar. 31, 2019

Asset Retirement Obligation Disclosure [Abstract]

Reconciliation of the Aggregate Retirement Obligation Asset

Following is a reconciliation of the aggregate retirement obligation asset associated with our mining reclamation plans: 

	Three Months Ended				Twelve Months Ended
	March 31, 2019				December 31, 2018
Retirement obligation asset — beginning of period	$	203,274			$	282,745
Additional obligations incurred	—				—
Amortization of retirement obligation asset	(16,939		)		(79,471		)
Retirement obligation asset — end of period	$	186,335			$	203,274

X

- References

No definition available.

+ Details

Name:	us-gaap_AssetRetirementObligationDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the carrying amount of a liability for asset retirement obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

Name:	us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration