XML 53 R23.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2013
Notes to Financial Statements |
Assets and Liabilities at Fair Value Sept. 30 2013 |
(in thousands) | Level 1 | Level 2 | Level 3 | Total
Assets |  |  |  |
Marketable equity securities | $4,022 | $ - | $- | $4,022
Liabilities |  |  |  |
RMB warrants | - | 282 | - | 282
Kinross calls | 26 | - | - | 26

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_AssetsAndLiabilitiesFairValueSep2013TableTextBlock
Namespace Prefix: | XPL_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | XPL_NotesToFinancialStatementsAbstract
Namespace Prefix: | XPL_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration