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Related Party Transactions - Additional Information (Detail) - USD ($)					3 Months Ended		6 Months Ended
	Apr. 30, 2025	Apr. 01, 2025	Dec. 23, 2024	Apr. 01, 2024	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Jun. 10, 2025	Jun. 04, 2025	Dec. 31, 2024
Related Party Transaction [Line Items]
Common stock issued and exchanged with related party						$ 429,568		$ 429,569
Common stock, shares issued					32,484,832		32,484,832				28,825,333
Consulting service charges					$ 9,000		$ 9,000
Oceanica Mexico [Member]
Related Party Transaction [Line Items]
Equity interests in joint venture										50.00%
NAFTA [Member]
Related Party Transaction [Line Items]
Litigation funding waiver fee amount							1,000,000
Legal and administrative expenses							1,600,000
Oceanica-ExO Notes ]Member[
Related Party Transaction [Line Items]
Debt outstanding with accrued and unpaid interest									$ 135,100,000
Aggregate arbitration expenses balance									2,600,000
Oceanica-ExO Indebtedness [Member]
Related Party Transaction [Line Items]
Debt instruments converted amount									$ 137,700,000
Purchase Agreement [Member] \| Two Seas Funds [Member]
Related Party Transaction [Line Items]
Principal paid							$ 0
Class of warrants or rights exercise price of warrants or rights	$ 1.1				$ 1.1		$ 1.1
Debt, interest expense					$ 73,999	83,946	$ 145,252	165,651
Paid in kind interest into capitalized principal				$ 81,705			71,253
Paid in cash capitalized principal				83,946	$ 0		$ 0
Class of warrants or rights outstanding	460,000				267,514		267,514
Purchase Agreement [Member] \| Fourworld Funds [Member]
Related Party Transaction [Line Items]
Principal paid							$ 0
Class of warrants or rights exercise price of warrants or rights					$ 1.1		$ 1.1
Debt, interest expense					$ 29,338	33,282	$ 57,588	65,676
Paid in kind interest into capitalized principal				32,394			56,348
Paid in cash capitalized principal				33,282	$ 0		$ 0
Class of warrants or rights outstanding					285,715		285,715
December Two Thousand And Twenty Three Purchase Agreement [Member] \| Two Seas Funds [Member]
Related Party Transaction [Line Items]
Debt, interest expense					$ 63,400	56,880	$ 124,447	112,242
Paid in kind interest into capitalized principal		$ 61,047		55,362
Paid in cash capitalized principal		0		0
December Two Thousand And Twenty Three Purchase Agreement [Member] \| Fourworld Funds [Member]
Related Party Transaction [Line Items]
Debt, interest expense					$ 15,850	14,220	$ 31,112	28,060
Paid in kind interest into capitalized principal		15,262		13,840
Paid in cash capitalized principal		$ 0		$ 0
December Two Thousand And Twenty Three Purchase Agreement1 [Member] \| Two Seas Funds [Member]
Related Party Transaction [Line Items]
Class of warrants or rights exercise price of warrants or rights					$ 1.23		$ 1.23
Class of warrants or rights outstanding					470,588		470,588
December Two Thousand And Twenty Three Purchase Agreement1 [Member] \| Fourworld Funds [Member]
Related Party Transaction [Line Items]
Class of warrants or rights exercise price of warrants or rights					$ 1.23		$ 1.23
Class of warrants or rights outstanding					117,648		117,648
December Two Thousand And Twenty Three Purchase Agreement2 [Member] \| Two Seas Funds [Member]
Related Party Transaction [Line Items]
Class of warrants or rights exercise price of warrants or rights					$ 2.05		$ 2.05
Class of warrants or rights outstanding					70,522		70,522
December Two Thousand And Twenty Three Purchase Agreement2 [Member] \| Fourworld Funds [Member]
Related Party Transaction [Line Items]
Class of warrants or rights exercise price of warrants or rights					$ 2.05		$ 2.05
Class of warrants or rights outstanding					17,630		17,630
SPA
Related Party Transaction [Line Items]
Shares issued and sold	7,220,141		7,377,912				2,601,595
Purchase price per share	$ 1.1		$ 0.55
Oceanica Equity Exchange Agreements [Member]
Related Party Transaction [Line Items]
Accrued aggregate member interest of adminstrators and officers							1,911,666
Related Party [Member] \| Back Office Technical and Support Services [Member] \| Deep Sea Mineral Company, CIC, LLC [Member]
Related Party Transaction [Line Items]
Invoiced for technical services					$ 100,000	100,000	$ 200,000	300,000
Related Party [Member] \| Services Agreement [Member]
Related Party Transaction [Line Items]
Financing receivable after allowance for credit loss											$ 1,500,000
Four World Capital Management Llc [Member]
Related Party Transaction [Line Items]
Beneficial ownership percentage					5.10%		5.10%
Class of warrants or rights exercise price of warrants or rights					$ 3.35		$ 3.35
Four World Capital Management Llc [Member] \| 2022 Warrants [Member]
Related Party Transaction [Line Items]
Class of warrants or rights outstanding					205,628		205,628
Two Seas Capital Lp [Member]
Related Party Transaction [Line Items]
Beneficial ownership percentage					9.50%		9.50%
Class of warrants or rights exercise price of warrants or rights					$ 3.35		$ 3.35
Two Seas Capital Lp [Member] \| 2022 Warrants [Member]
Related Party Transaction [Line Items]
Class of warrants or rights outstanding					447,761		447,761
Two Seas Capital Lp [Member] \| SPA
Related Party Transaction [Line Items]
Shares issued and sold			1,818,182		1,312,647
Purchase price per share					$ 1.1		$ 1.1
Right to purchase additional shares			1,779,302
Number of options held to purchase additional shares					457,655		457,655
Caplat capital latinoamericano, S.A. de C.V. [Member]
Related Party Transaction [Line Items]
Beneficial ownership percentage					11.64%		11.64%
Equity interests in joint venture										50.00%
Caplat capital latinoamericano, S.A. de C.V. [Member] \| SPA
Related Party Transaction [Line Items]
Shares issued and sold			2,481,919		489,279
Purchase price per share					$ 1.1		$ 1.1
Right to purchase additional shares			2,428,747
Number of options held to purchase additional shares					1,939,468		1,939,468
Odyssey's Common Stock [Member] \| Oceanica Equity Exchange Agreements [Member]
Related Party Transaction [Line Items]
Common stock issued and exchanged with related party							$ 914,950
Common stock, shares issued					1,841,137		1,841,137
Oceanica Resources S. de. R.L [Member]
Related Party Transaction [Line Items]
Membership interests holding percentage					90.00%		90.00%
ORM [Member]
Related Party Transaction [Line Items]
Membership interests holding percentage					78.30%		78.30%
CIC Limited1 [Member]
Related Party Transaction [Line Items]
Equity Method Investment Ownership Interest					14.20%		14.20%
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage							11.90%
Oceanica Marine Operations [Member] \| Services Agreement [Member]
Related Party Transaction [Line Items]
Interest rate, stated percentage					18.00%		18.00%
Debt outstanding with accrued interest											$ 124,900,000
Oceanica Marine Operations [Member] \| Related Party [Member]
Related Party Transaction [Line Items]
Financing receivable after allowance for credit loss					$ 23,000,000		$ 23,000,000
Oceanica Marine Operations [Member] \| Related Party [Member] \| Oceanica-ExO Notes ]Member[
Related Party Transaction [Line Items]
Conversion price					$ 2.75		$ 2.75
Ocean Minerals LLC [Member]
Related Party Transaction [Line Items]
Equity Method Investment Ownership Interest					7.00%		7.00%
Marine services revenue					$ 22,500	$ 50,780	$ 45,000	$ 100,000