XML 38 R23.htm IDEA: XBRL DOCUMENT
v3.20.4

Marketable Equity Securities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Marketable Securities [Abstract] |
Marketable equity securities |
|  | Year ended December 31 2020 |
|  | shares |  |  | Fair value (000’s) |
Kinross Gold Corp |  |  | 100,000 |  |  | $ | 734 |
Vendetta Mining Corp. |  |  | 11,550,000 |  |  |  | 544 |
Vox Royalty Corp. |  |  | 137,255 |  |  |  | 323 |
TNR Gold Corp. |  |  | 430,000 |  |  |  | 19 |
Total |  |  |  |  |  | $ | 1,620 |
Marketable securities and adjustment to fair value |
(in thousands) |  | Year ended December 31, |
|  | 2020 |  |  | 2019 |
Marketable equity securities at cost |  | $ | 2,099 |  |  | $ | 1,879 |
Cumulative unrealized (loss) gain on marketable equity securities |  |  | (479 | ) |  |  | (840 | )
Marketable equity securities at fair value |  | $ | 1,620 |  |  | $ | 1,039 |
Changes in marketable securities |
(in thousands) |  | Year ended December 31, |
|  | 2020 |  |  | 2019 |
Cost of marketable equity securities sold |  | $ | 73 |  |  | $ | - |
Realized gain on marketable equity securities sold |  |  | 50 |  |  |  | - |
Proceeds from the sale of marketable equity securities sold |  |  | (123 | ) |  |  | - |
Net gain (loss) on marketable equity securities |  |  | 410 |  |  |  | (711 | )
Additions to marketable equity securities |  |  | 294 |  |  |  | 165 |
Change in marketable equity securities at fair value |  | $ | 581 |  |  | $ | (546 | )
Realized and unrealized gain (loss) on marketable equity securities |
(in thousands) |  | Year ended December 31, |
|  | 2020 |  |  | 2019 |
Unrealized gain (loss) on marketable equity securities |  | $ | 360 |  |  | $ | (711 | )
Realized gain on marketable equity securities sold |  |  | 50 |  |  |  | - |
Net gain (loss) on marketable equity securities |  | $ | 410 |  |  | $ | (711 | )

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

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

X
- Definition Tabular disclosure of realized and unrealized gain (loss) on investment in security. + References No definition available. + Details
Name: | us-gaap_GainLossOnInvestmentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration