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Related Party Transactions (Details Narrative) - USD ($)	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
AirSCWO [Member]
Expenses from Transactions with Related Party	$ 0	$ 240,559

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- References

No definition available.

+ Details

Name:	scwo_RelatedPartyTransactionExpensesFromTransactionWithRelatedParty
Namespace Prefix:	scwo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=scwo_AirSCWOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: