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The number of instruments or interests issued or issuable at acquisition date for equity interests of the acquirer transferred as consideration in a business combination.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2025-01-01
-Paragraph B64
-Subparagraph f
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2025-en-r&anchor=para_B64_f_iv&doctype=Appendix&subtype=B
-URIDate 2025-03-27

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Data Type:	xbrli:decimalItemType
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The cash outflow for the acquisition of marketable securities.

No definition available.

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Data Type:	xbrli:monetaryItemType
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The increase (decrease) in equity resulting from the purchase of equity instruments.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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The number of shares AND warrants for which each marketable security instrument may be exchanged.

No definition available.

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Data Type:	xbrli:sharesItemType
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Period Type:	instant

The price per instrument for the acquisition of marketable securities.

No definition available.

Name:	isou_MarketableSecuritiesPricePerInstrument
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Data Type:	xbrli:decimalItemType
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The number of marketable security instruments acquired during the period.

No definition available.

Name:	isou_NumberOfMarketableSecurityInstrumentsAcquired
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Data Type:	xbrli:sharesItemType
Balance Type:	na
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The number of marketable security instruments converted into shares during the period.

No definition available.

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

The number of marketable security instruments converted into warrants during the period.

No definition available.

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Data Type:	xbrli:sharesItemType
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Number of shares issued in lieu of cash for purchasing marketable securities.

No definition available.

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Data Type:	xbrli:sharesItemType
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Period Type:	duration

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