XML 44 R32.htm IDEA: XBRL DOCUMENT v3.25.4

Marketable Equity Securities (Details 1) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Marketable equity securities at fair value	$ 294	$ 1,322
Equity securities
Marketable equity securities at cost	1,177	1,440
Cumulative unrealized loss on marketable equity securities	(883)	(118)
Marketable equity securities at fair value	$ 294	$ 1,322

X

- Definition

Amount of investment in marketable security, classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_MarketableSecuritiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

Name:	xpl_UnrealizedGainLossOnMarketableEquitySecurities
Namespace Prefix:	xpl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_CollateralAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: