XML 32 R61.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Employee Stock Compensation Plans - Employee Stock - Stock Option Activity (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |  |
Outstanding, beginning of year | 2,598,400 | 2,433,400
Weighted Average Exercise Price (Cdn$), beginning of year | $ 2.22 | $ 2.27
Granted |  | 165,000
Granted Weighted Average Exercise Price (Cdn$) |  | 1.49
Exercised | 117,000 |
Exercised Weighted Average Exercise Price (Cdn$) | 1.55 |
Cancelled |  |
Cancelled Weighted Average Exercise Price (Cdn$) |  |
Forfeited | (61,900) |
Forfeited Weighted Average Exercise Price (Cdn$) | 2.40 |
Outstanding, end of year | 2,419,000 | 2,598,400
Weighted Average Exercise Price (Cdn$), end of year | 2.25 | 2.22
Aggregate Intrinsic Value, end of year (1) | $ 1,650,000 | $ 1,650,000
Exercisable, end of year | 2,336,500 | 1,958,400
Exercisable, end of year, Weighted Average Exercise Price (Cdn$) | 2.25 | 2.22
Aggregate Intrinsic Value, exercisable (1) | $ 413,000 | $ 413,000

X
- Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_AggregateIntrinsicValueEndOfYear2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_AggregateIntrinsicValueExercisable2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_Cancelled2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_ExercisableEndOfYear2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_Exercised2006OptionPlan
Namespace Prefix: | XPL_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_Forfeited2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_Granted2006OptionPlan
Namespace Prefix: | XPL_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_OutstandingBeginningOfYear2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_OutstandingEndOfYear2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_WeightedAveExerPriceBeginningOfYear2006Plan
Namespace Prefix: | XPL_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_WeightedAveExerPriceCancelled2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_WeightedAveExerPriceEndOfYear2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_WeightedAveExerPriceForfeited2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_WeightedAveExerPriceGranted2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_WeightedAverageExercisePriceEndOfYear2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | XPL_WeightedAverageExercisePriceExercised2006Plan
Namespace Prefix: | XPL_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration