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Summary of Significant Accounting Policies - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2023 USD ($) Segment | Dec. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items] |  |
Short-term investment maturity period | 3 months |
Exploration license impairments | $ 0 | $ 0
Initial lease term | 12 months |
Net income loss attributable to parent diluted | $ 4,811 |
Number of operating segments | Segment | 1 |
Computer Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and Equipment, estimated useful life | 3 years |
Furniture And Office Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and Equipment, estimated useful life | 5 years |
Minimum [Member] | Marine Services Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and Equipment, estimated useful life | 5 years |
Maximum [Member] | Marine Services Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and Equipment, estimated useful life | 10 years |

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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent, and includes adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions. + References No definition available. + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-18 + Details
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