XML 38 R28.htm IDEA: XBRL DOCUMENT v3.25.1

Marketable Equity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Marketable equity securities at fair value	$ 1,706	$ 1,322
Vendetta Mining Corp. [Member]
Marketable equity securities at fair value	$ 54	$ 81
Shares	7,750,000	7,750,000
Vox Royalty Corp. [Member]
Marketable equity securities at fair value	$ 391	$ 314
Shares	134,055	134,055
Kinross Gold Corp.
Marketable equity securities at fair value	$ 1,261	$ 927
Shares	100,000	100,000

X

- References

No definition available.

+ Details

Name:	xpl_AvailableForSalesSecuritiesCurrent
Namespace Prefix:	xpl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	xpl_MarketableEquitySecurityShares
Namespace Prefix:	xpl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=xpl_VendettaMiningCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=xpl_VoxRoyaltyCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=xpl_KinrossGoldCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: