XML 35 R21.htm IDEA: XBRL DOCUMENT v3.3.1.900

Mineral Properties (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Investment in Mineral Property

(in thousands)	December 31,
	2015	2014
Exploration
La Promesa (Peru)	5	5
Norcan (Mexico)	6	6
Aconchi (Mexico)	5	5
Canta Colorado (Mexico)	3	3
Total exploration mineral property	19	19

Capitalized Development Costs

(in thousands)	Year ended December 31,
	2015	2014
Development expenditures	$692	$    1,678
Capitalized interest	493	633
Property payments	190	250
Capitalized depreciation	7	21
Total capitalized costs	$ 1,382	$ 2,582

Exploration Expense

	For the year ended December 31,
(in thousands)	2015	2014
Geologic and field expenses	$31	$197
Administrative	58	82
Total exploration expense	$89	$279

X

- References

No definition available.

+ Details

Name:	XPL_MineralPropertyExplorationExpenseTableTextBlock
Namespace Prefix:	XPL_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	XPL_PropertyPlantAndEquipmentTableTextBlock
Namespace Prefix:	XPL_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of the capitalized costs of unproved properties and major development projects that are excluded from capitalized costs being amortized. This includes the total costs excluded and, at a minimum, these categories of costs: acquisition costs, exploration costs, development costs in the case of significant development projects, and capitalized interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10.(c)(7)(ii))
-URI http://asc.fasb.org/extlink&oid=50486907&loc=d3e511914-122862

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 10
-Paragraph c
-Subparagraph 3(ii)(A)
-Article 4

+ Details

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