XML 34 R19.htm IDEA: XBRL DOCUMENT
v3.24.1

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Summary of Significant Accounting Policies |
Schedule of company held marketable securities |
|  | Adjusted Cost |  |  | Unrealized Losses |  |  | Fair Value |  |  | Cash and Cash Equivalents |  |  | Current AFS Securities |  |  | Non-Current AFS Securities |
Cash |  | $ | 4,046,937 |  |  | $ | — |  |  | $ | 4,046,937 |  |  | $ | 4,046,937 |  |  | $ | — |  |  | $ | — |
Level 2: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  |  | 1,963,432 |  |  |  | 18,968 |  |  |  | 1,944,464 |  |  |  | — |  |  |  | 1,944,464 |  |  |  | — |
Total |  | $ | 6,010,369 |  |  | $ | 18,968 |  |  | $ | 5,991,401 |  |  | $ | 4,046,937 |  |  | $ | 1,944,464 |  |  | $ | — |
Summary of activity related to accounts receivable allowance for credit losses |
Name |  | 2023 |  |  | 2022 |
Beginning balance |  | $ | — |  |  | $ | — |
Current period provision |  |  | 2,909 |  |  |  | — |
Write-offs |  |  | — |  |  |  | — |
Recoveries |  |  | — |  |  |  | — |
Ending Balance |  | $ | 2,909 |  |  | $ | — |
Schedule of property and equipment |
|  | 2023 |  |  | 2022 |
Computers |  | $ | 16,489 |  |  | $ | 11,434 |
Equipment |  |  | 190,748 |  |  |  | 134,322 |
Vehicles |  |  | 44,510 |  |  |  | — |
Total property and equipment |  |  | 251,747 |  |  |  | 145,756 |
Less: accumulated depreciation |  |  | (20,776 | ) |  | $ | (2,677 | )
Total property and equipment, net |  | $ | 230,971 |  |  | $ | 143,079 |
|  | Year Ended December 31, |
|  | 2023 |  |  | 2022 |
Depreciation |  | $ | 18,098 |  |  | $ | 2,447 |

X
- References No definition available. + Details
Name: | scwo_SummaryOfActivityRelatedToAccountsReceivableAllowanceForCreditLossesTableTextBlock
Namespace Prefix: | scwo_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of public utility physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation expense and method used, including composite depreciation, and accumulated depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 980 -SubTopic 20 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481834/980-20-45-1 + Details
Name: | us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of not readily marketable securities and investments including, but not limited to, description of security or investment, fair value and value as measured by quoted price. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 940 -SubTopic 820 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481753/940-820-50-1 + Details
Name: | us-gaap_ScheduleOfSecuritiesOwnedNotReadilyMarketableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration