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Related Party Transactions - Additional Information (Detail) - USD ($)								3 Months Ended	12 Months Ended
	Sep. 06, 2024	Sep. 05, 2024	Aug. 15, 2023	Apr. 06, 2023	Dec. 13, 2022	Jun. 10, 2022	Jul. 15, 2021	Jun. 30, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 20, 2024	Sep. 30, 2024	Dec. 01, 2023	Sep. 22, 2023	Mar. 06, 2023
Related Party Transaction [Line Items]
Proceeds from other operating activities									$ 9,800,000
Accrued interest receivable									0	$ 288,991
Debt discount amount									1,906,850	3,955,449
Class of warrant or right, Number of securities called by warrants or rights						90,552
Class of warrants or rights outstanding											5,327,046
Class of warrants or rights exercise price of warrants or rights						$ 3.35
Revenue									768,677	803,799
Operating and Other [Member]
Related Party Transaction [Line Items]
Revenue									$ 42,282	24,218
MINOSA 2 [Member]
Related Party Transaction [Line Items]
Long-term Debt							$ 400,000
Conversion price of Notes							$ 4.35
Debt, interest expense							$ 200,000
March 2023 Note And Purchase Agreement [Member]
Related Party Transaction [Line Items]
Debt instrument maturity date		Dec. 06, 2024
Principal paid	$ 3,000,000
Two Seas Capital Lp [Member]
Related Party Transaction [Line Items]
Beneficial ownership percentage									9.99%
Stock issued during the period shares new issues						447,761
Class of warrants or rights exercise price of warrants or rights									$ 3.35
Beneficial ownership percentage applicable to warrants held									8.10%
Two Seas Capital Lp [Member] | 2022 Warrants [Member]
Related Party Transaction [Line Items]
Class of warrant or right, Number of securities called by warrants or rights						447,761
Class of warrants or rights outstanding									447,761
Four World Capital Management Llc [Member]
Related Party Transaction [Line Items]
Beneficial ownership percentage									5.10%
Stock issued during the period shares new issues						291,628
Four World Capital Management Llc [Member] | 2022 Warrants [Member]
Related Party Transaction [Line Items]
Class of warrant or right, Number of securities called by warrants or rights						291,628
Class of warrants or rights outstanding									205,777
Greywolf Opportunities Master Fund II LP [Member]
Related Party Transaction [Line Items]
Beneficial ownership percentage									5.00%			9.20%
Stock issued during the period shares new issues						940,298
Greywolf Opportunities Master Fund II LP [Member] | 2022 Warrants [Member]
Related Party Transaction [Line Items]
Class of warrant or right, Number of securities called by warrants or rights						940,298
Ocean Minerals, LLC [Member]
Related Party Transaction [Line Items]
Marine services revenue									$ 200,000	200,000
Revenue									4,982,246
Ocean Minerals, LLC [Member] | Operating and Other [Member]
Related Party Transaction [Line Items]
Revenue									0	14,891
Deep Sea Mineral Company, CIC, LLC [Member]
Related Party Transaction [Line Items]
Value of the equipment purchased									200,000
Back Office Technical and Support Services [Member] | Deep Sea Mineral Company, CIC, LLC [Member] | Related Party [Member]
Related Party Transaction [Line Items]
Related party expenses									500,000	600,000
Loan Agreement [Member] | Deep Sea Mineral Company, CIC, LLC [Member]
Related Party Transaction [Line Items]
Convertible notes payable					$ 1,400,000
Interest rate, stated percentage					18.00%
Accrued interest receivable								$ 300,000
Advance amount paid					$ 1,000,000
Debt discount amount					$ 400,000
Debt instrument periodic payment				$ 1,100,000
Services Agreement [Member] | Related Party [Member]
Related Party Transaction [Line Items]
Carrying value of note receivable									1,500,000	700,000
Services Agreement [Member] | Deep Sea Mineral Company, CIC, LLC [Member]
Related Party Transaction [Line Items]
Interest rate, stated percentage					1.50%
Debt instrument maturity date					Aug. 15, 2023
Debt outstanding with accrued interest									124,900,000
Debt instrument periodic payment			$ 700,000
Purchase Agreement [Member] | Fourworld Funds [Member]
Related Party Transaction [Line Items]
Debt, interest expense									100,000	100,000
Paid in kind interest into capitalized principal									96,159	69,320
Paid in cash capitalized principal									$ 200,000	0
Principal paid	200,000
Class of warrants or rights outstanding									285,715						285,715
Class of warrants or rights exercise price of warrants or rights									$ 1.1
Debt instrument face amount															$ 1,080,000.00
Warrants and rights outstanding															$ 1,080,000.00
Purchase Agreement [Member] | Two Seas Funds [Member]
Related Party Transaction [Line Items]
Debt, interest expense									$ 300,000	200,000
Paid in kind interest into capitalized principal									200,000	100,000
Paid in cash capitalized principal									$ 600,000	0
Principal paid	600,000
Class of warrants or rights outstanding									727,514					118,878	608,636
Class of warrants or rights exercise price of warrants or rights									$ 1.1
Debt instrument face amount														$ 400,000	$ 2,300,000
Warrants and rights outstanding														$ 400,000	$ 2,300,000
Purchase Agreement [Member] | Greywolf [Member]
Related Party Transaction [Line Items]
Debt, interest expense									$ 800,000	700,000
Paid in kind interest into capitalized principal									600,000	400,000
Paid in cash capitalized principal									$ 200,000	0
Principal paid	$ 1,500,000
Class of warrants or rights outstanding									1,851,852						1,851,852
Class of warrants or rights exercise price of warrants or rights									$ 1.1
Debt instrument face amount															$ 7,000,000
Warrants and rights outstanding															$ 7,000,000
December Two Thousand And Twenty Three Purchase Agreement [Member] | Fourworld Funds [Member]
Related Party Transaction [Line Items]
Debt, interest expense									$ 58,011	4,671
Paid in kind interest into capitalized principal									47,502	0
Paid in cash capitalized principal									0	0
Class of warrants or rights outstanding													135,278
Debt instrument face amount													$ 500,000
December Two Thousand And Twenty Three Purchase Agreement [Member] | Two Seas Funds [Member]
Related Party Transaction [Line Items]
Debt, interest expense									200,000	18,685
Paid in kind interest into capitalized principal									200,000	18,685
Paid in cash capitalized principal									0	0
Class of warrants or rights outstanding													541,110
Debt instrument face amount													$ 2,000,000
December Two Thousand And Twenty Three Purchase Agreement [Member] | Greywolf [Member]
Related Party Transaction [Line Items]
Debt, interest expense									100,000	9,342
Paid in kind interest into capitalized principal									100,000	0
Paid in cash capitalized principal									$ 0	0
Class of warrants or rights outstanding													270,556
Debt instrument face amount													$ 1,000,000
December Two Thousand And Twenty Three Purchase Agreement1 [Member] | Fourworld Funds [Member]
Related Party Transaction [Line Items]
Class of warrants or rights outstanding									117,647
Class of warrants or rights exercise price of warrants or rights									$ 1.23
December Two Thousand And Twenty Three Purchase Agreement1 [Member] | Two Seas Funds [Member]
Related Party Transaction [Line Items]
Class of warrants or rights outstanding									470,588
Class of warrants or rights exercise price of warrants or rights									$ 1.23
December Two Thousand And Twenty Three Purchase Agreement2 [Member] | Fourworld Funds [Member]
Related Party Transaction [Line Items]
Class of warrants or rights outstanding									17,630
Class of warrants or rights exercise price of warrants or rights									$ 2.05
December Two Thousand And Twenty Three Purchase Agreement2 [Member] | Two Seas Funds [Member]
Related Party Transaction [Line Items]
Class of warrants or rights outstanding									70,522
Class of warrants or rights exercise price of warrants or rights									$ 2.05
Oceanica Marine Operations [Member] | Related Party [Member]
Related Party Transaction [Line Items]
Carrying value of note receivable									$ 23,000,000
Oceanica Marine Operations [Member] | Between 2012 and 2014 [Member] | Related Party [Member]
Related Party Transaction [Line Items]
Carrying value of note receivable									11,400,000
Oceanica Marine Operations [Member] | Between 2015 and 2017 [Member] | Related Party [Member]
Related Party Transaction [Line Items]
Carrying value of note receivable									$ 7,600,000
Oceanica Marine Operations [Member] | Services Agreement [Member]
Related Party Transaction [Line Items]
Interest rate, stated percentage									18.00%
Debt outstanding with accrued interest										105,000,000
CIC Limited1 [Member]
Related Party Transaction [Line Items]
Variable Interest Entity Ownership Percentage									11.94%
CIC Limited1 [Member] | Related Party [Member] | Operating and Other [Member]
Related Party Transaction [Line Items]
Revenue									$ 42,282	$ 9,327
Maximum [Member] | Services Agreement [Member] | Deep Sea Mineral Company, CIC, LLC [Member]
Related Party Transaction [Line Items]
Related party expenses					$ 600,000
OperatingCostAndExpenseRelatedPartyTypeExtensibleEnumeration					Related Party [Member]
Maximum [Member] | Salvage Agreement [Member]
Related Party Transaction [Line Items]
Equity Method Investment Ownership Interest									60.00%
Minimum [Member] | Salvage Agreement [Member]
Related Party Transaction [Line Items]
Equity Method Investment Ownership Interest									40.00%

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