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Revenue (Details 2) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenue
Unbilled accounts receivable at beginning of year	$ 0	$ 0
Services performed but unbilled	918,164	0
Services billed	0	0
Unbilled accounts receivable at end of year	$ 918,164	$ 0

X

- References

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Namespace Prefix:	scwo_
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Balance Type:	na
Period Type:	duration

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- References

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+ 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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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 310
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=126942793&loc=d3e3073-115593

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(5))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

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