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Summary of Significant Accounting Policies (Details 1) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Summary of Significant Accounting Policies
Beginning balance	$ 0	$ 0
Current period provision	2,909	0
Write-offs	0	0
Recoveries	0	0
Ending Balance	$ 2,909	$ 0

X

- References

No definition available.

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Namespace Prefix:	scwo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	scwo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- References

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Namespace Prefix:	scwo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- References

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

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- References

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Balance Type:	na
Period Type:	duration

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- Definition

Amount of cash inflow from recovery of accounts receivable previously written off.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-12

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