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v2.4.0.8

Short Term Debt - Short Term Debt UBS (Details) (USD $) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2013 | Dec. 31, 2012
UBS short-term credit line |  |
Beginning balance |  | $ 1,500,000
Borrowing | 1,117,000 |
Repayments | (2,617,000) |
Ending balance |  |

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_BeginningBalanceShortTermCreditLine
Namespace Prefix: | XPL_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_EndingBalanceShortTermCredit
Namespace Prefix: | XPL_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_RepaymentsNetOfInterest
Namespace Prefix: | XPL_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_ShortTermBorrowing
Namespace Prefix: | XPL_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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