XML 62 R48.htm IDEA: XBRL DOCUMENT v3.6.0.2

Employee Stock Compensation Plans - Employee Stock Compensation Plans - Summary Stock Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Options 2006 Plan
Outstanding, beginning of year	40,000	2,348,000
Outstanding, beginning of year, Per Share	$ 1.66	$ 1.66
Granted	350,000
Granted, Per Share	$ .72
Exercised
Exercised, Per Share
Cancelled/Expired/Forfeited (2)(3)	390,000	2,308,000
Cancelled/Expired/Forfeited (2)(3), Per Share	$ .82	$ 1.66
Outstanding, end of year		40,000
Outstanding, end of year, Per Share		$ 1.60
Exercisable, end of year		20,000
Exercisable, end of year, Per Share		$ 1.60
Options/RSUs 2013 Plan
Outstanding, beginning of year		1,400,000
Outstanding, beginning of year, Per Share		$ 0.96
Granted	1,699,000
Granted, Per Share	$ .72
Exercised
Exercised, Per Share
Cancelled/Expired/Forfeited (2)(3)	1,699,000	1,400,000
Cancelled/Expired/Forfeited (2)(3), Per Share	$ .94	$ .94
Outstanding, end of year
Outstanding, end of year, Per Share
Exercisable, end of year
Exercisable, end of year, Per Share

X

- References

No definition available.

+ Details

Name:	XPL_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercised
Namespace Prefix:	XPL_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	XPL_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedPerShare
Namespace Prefix:	XPL_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	XPL_ShareBasedCompensationArrangementByShareBasedPaymentPricePerShareOutstanding
Namespace Prefix:	XPL_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	XPL_ShareBasedCompensationByShareBasedPaymentAwardOptionsOutstandingBeginningOfPeriod
Namespace Prefix:	XPL_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	XPL_ShareBasedCompensationByShareBasedPaymentAwardOptionsOutstandingEndingBalancePerShare
Namespace Prefix:	XPL_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	XPL_ShareBasedCompensationByShareBasedPaymentAwardOptionsOutstandingEndingBalanceShares
Namespace Prefix:	XPL_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	XPL_ShareBasedCompensationByShareBasedPaymentAwardOptionsOutstandingExercisableEndOfPeriodShares
Namespace Prefix:	XPL_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	XPL_ShareBasedCompensationByShareBasedPaymentAwardOptionsOutstandingExercisablePerShareEndOfPeriod
Namespace Prefix:	XPL_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)-(4)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Weighted average price of options that were either forfeited or expired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)-(4)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis=XPL_Options2006PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis=XPL_OptionsRSU20136PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: