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Related Party Transactions - Additional Information (Detail) - USD ($) |  |  | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 30, 2025 | Dec. 23, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2025 | Jun. 10, 2025 | Jun. 04, 2025 | Dec. 31, 2024
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Converted aggregate indebtedness |  |  |  |  | $ 15,535,615 | $ 1,185,701 |  |  |  |
Principal and accrued interest shares |  |  | 50,384,898 |  | 50,384,898 |  |  |  |  | 28,825,333
Common stock issued and exchanged with related party |  |  |  |  |  | 429,569 |  |  |  |
Common stock, shares issued |  |  | 50,384,898 |  | 50,384,898 |  |  |  |  | 28,825,333
Consulting service charges |  |  | $ 8,400 |  | $ 17,400 |  |  |  |  |
Oceanica Mexico [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Equity interests in joint venture |  |  | 50.00% |  | 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 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 |  |  |  |  |
Principal and accrued interest |  |  | $ 2,800,000 |  | $ 2,800,000 |  |  |  |  |
Principal and accrued interest shares |  |  | 2,236,587 |  | 2,236,587 |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights | $ 1.1 |  | $ 1.1 |  | $ 1.1 |  |  |  |  |
Debt, interest expense |  |  | $ 71,015 | $ 83,946 | $ 216,267 | 246,110 |  |  |  |
Paid in kind interest into capitalized principal |  |  |  |  | 216,124 | 162,080 |  |  |  |
Paid in cash capitalized principal |  |  | $ 0 | 83,946 | $ 0 | 83,946 |  |  |  |
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 |  |  |  |  |
Converted aggregate indebtedness |  |  |  |  | $ 1,100,000 |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  | $ 1.1 |  | $ 1.1 |  |  |  |  |
Debt, interest expense |  |  | $ 30,474 | 31,899 | $ 88,062 | 97,575 |  |  |  |
Paid in kind interest into capitalized principal |  |  |  |  | 85,656 | 64,260 |  |  |  |
Paid in cash capitalized principal |  |  | $ 0 | 33,282 | $ 0 | 33,282 |  |  |  |
Class of warrants or rights outstanding |  |  | 285,715 |  | 285,715 |  |  |  |  |
Purchase Agreement [Member] | Greywolf [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Principal and accrued interest |  |  | $ 7,200,000 |  | $ 7,200,000 |  |  |  |  |
Principal and accrued interest shares |  |  | 6,554,624 |  | 6,554,624 |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  | $ 1.1 |  | $ 1.1 |  |  |  |  |
Debt, interest expense |  |  | $ 86,182 | 206,756 | $ 459,438 | 632,431 |  |  |  |
Paid in kind interest into capitalized principal |  |  |  |  | 555,375 | 416,498 |  |  |  |
Paid in cash capitalized principal |  |  | $ 86,182 | 0 | $ 86,182 | 0 |  |  |  |
Class of warrants or rights outstanding |  |  | 1,851,852 |  | 1,851,852 |  |  |  |  |
December Two Thousand And Twenty Three Purchase Agreement [Member] | Two Seas Funds [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Debt, interest expense |  |  | $ 65,854 | 59,082 | $ 190,301 | 171,324 |  |  |  |
Paid in kind interest into capitalized principal |  |  |  |  | 185,167 | 130,927 |  |  |  |
Paid in cash capitalized principal |  |  | 0 | 0 | 0 | 0 |  |  |  |
December Two Thousand And Twenty Three Purchase Agreement [Member] | Fourworld Funds [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Debt, interest expense |  |  | 16,464 | 14,771 | 47,575 | 42,831 |  |  |  |
Paid in kind interest into capitalized principal |  |  |  |  | 46,292 | 32,732 |  |  |  |
Paid in cash capitalized principal |  |  | 0 | 0 | 0 | 0 |  |  |  |
December Two Thousand And Twenty Three Purchase Agreement [Member] | Greywolf [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Debt, interest expense |  |  | 7,516 | 29,541 | 69,739 | 85,662 |  |  |  |
Paid in kind interest into capitalized principal |  |  |  |  | 92,584 | 65,463 |  |  |  |
Paid in cash capitalized principal |  |  | $ 7,516 | 0 | $ 7,516 | 0 |  |  |  |
Class of warrants or rights outstanding |  |  | 1,086,458 |  | 1,086,458 |  |  |  |  |
Warrants and Rights Outstanding |  |  | $ 1,200,000 |  | $ 1,200,000 |  |  |  |  |
December Two Thousand And Twenty Three Purchase Agreement1 [Member] | Two Seas Funds [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Converted aggregate indebtedness |  |  |  |  | $ 2,400,000 |  |  |  |  |
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] |  |  |  |  |  |  |  |  |  |
Converted aggregate indebtedness |  |  |  |  | $ 600,000 |  |  |  |  |
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 Agreement1 [Member] | Greywolf [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 |  |  | 235,295 |  | 235,295 |  |  |  |  |
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 |  |  |
Class of warrants or rights outstanding |  |  | 17,630 |  | 17,630 |  |  |  |  |
December Two Thousand And Twenty Three Purchase Agreement2 [Member] | Greywolf [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 |  |  | 35,261 |  | 35,261 |  |  |  |  |
SPA |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued and sold | 7,220,141 | 7,377,912 | 4,373,893 |  | 6,975,488 |  |  |  |  |
Purchase price per share | $ 1.1 | $ 0.55 |  |  |  |  |  |  |  |
Oceanica Equity Exchange Agreements [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Accrued aggregate 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 |  |  | $ 37,500 | 100,000 | $ 300,000 | 400,000 |  |  |  |
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 |  |  | 205,777 |  | 205,777 |  |  |  |  |
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 | 457,655 |  | 1,779,302 |  |  |  |  |
Purchase price per share |  |  | $ 1.1 |  | $ 1.1 |  |  |  |  |
Right to purchase additional shares |  | 1,779,302 |  |  |  |  |  |  |  |
Number of options held to purchase additional shares |  |  | 0 |  | 0 |  |  |  |  |
Greywolf Opportunities Master Fund II LP [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Beneficial ownership percentage |  |  | 9.30% |  | 9.30% |  |  |  |  |
Class of warrants or rights exercise price of warrants or rights |  |  | $ 3.35 |  | $ 3.35 |  |  |  |  |
Greywolf Opportunities Master Fund II LP [Member] | 2022 Warrants [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Class of warrants or rights outstanding |  |  | 342,391 |  | 342,391 |  |  |  |  |
Greywolf Opportunities Master Fund II LP [Member] | SPA |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued and sold |  | 454,546 | 355,860 |  | 444,826 |  |  |  |  |
Purchase price per share |  |  | $ 1.1 |  | $ 1.1 |  |  |  |  |
Right to purchase additional shares |  | 444,826 |  |  |  |  |  |  |  |
Number of options held to purchase additional shares |  |  | 0 |  | 0 |  |  |  |  |
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 | 1,939,468 |  | 2,428,747 |  |  |  |  |
Purchase price per share |  |  | $ 1.1 |  | $ 1.1 |  |  |  |  |
Right to purchase additional shares |  | 2,428,747 |  |  |  |  |  |  |  |
Number of options held to purchase additional shares |  |  | 0 |  | 0 |  |  |  |  |
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 |  |  | 14.30% |  | 14.30% |  |  |  |  |
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 |  |  | $ 23,475 | $ 26,439 | $ 68,475 | $ 200,000 |  |  |  |

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