Cover [Abstract] Document Information [Table] Class of Stock [Axis] Class of Stock [Domain] Represents the common shares, without par value. Common Shares, Without Par Value Common Shares, without par value Represents the redeemable warrants, each whole warrant exercisable for one common Share, each at an exercise price of $11.50 per share. Redeemable Warrants, Each Whole Warrant Exercisable For One Common Share, Each At An Exercise Price Of $11.50 Per Share Redeemable warrants, each whole warrant exercisable for one Common Share, each at an exercise price of $11.50 per share Document Information [Line Items] Document And Entity Information Document Type Document Type Document Quarterly Report Document Transition Report Document Period End Date Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Central Index Key Entity Central Index Key Entity Ex Transition Period Entity Ex Transition Period Amendment Flag Amendment Flag Condensed Consolidated Balance Sheets Statement [Table] Statement [Line Items] Statement Assets [Abstract] ASSETS Assets, Current [Abstract] Current Cash and Cash Equivalents, at Carrying Value Cash Amount of receivables and prepayments. Receivables And Prepayments Current Receivables and prepayments Assets, Current Total current assets Assets, Noncurrent [Abstract] Non-current Amount of exploration licenses. Exploration Licenses Noncurrent Exploration contracts Property, Plant and Equipment, Net Equipment Operating Lease, Right-of-Use Asset Right-of-use Asset Right-of-use Asset Right-of-use asset Long-Term Investments Investment Assets, Noncurrent Total non-current assets Assets TOTAL ASSETS Liabilities [Abstract] LIABILITIES Liabilities, Current [Abstract] Current Accounts Payable and Accrued Liabilities, Current Accounts payable and accrued liabilities Liabilities, Current Total current liabilities Liabilities, Noncurrent [Abstract] Non-current Deferred Income Tax Liabilities, Net Deferred tax liability Amount of warrant liability. Warrant Liability Warrants liability Liabilities TOTAL LIABILITIES Stockholders' Equity Attributable to Parent [Abstract] EQUITY Common Stock, Value, Issued Common shares (unlimited shares, no par value - issued: 305,129,856 (December 31, 2022 - 266,812,131)) Represents the special shares value. Special Shares Value Special Shares Additional Paid in Capital Additional paid in capital Additional paid-in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Retained Earnings (Accumulated Deficit) Deficit Stockholders' Equity Attributable to Parent Balance Balance TOTAL EQUITY Liabilities and Equity TOTAL LIABILITIES AND EQUITY Common Stock, No Par Value Common shares, par value Common Stock, Shares, Issued Common shares, issued Condensed Consolidated Statements of Loss and Comprehensive Loss Operating Expenses [Abstract] Operating expenses Exploration Expense Exploration and evaluation expenses Exploration and evaluation expenses Exploration and evaluation expenses General and Administrative Expense General and administrative expenses Operating Income (Loss) Operating loss Other Items [Abstract] Other items Equity Method Investment, Realized Gain (Loss) on Disposal Equity-accounted investment loss Gain (Loss) on Disposition of Assets Gain on disposition of asset Gain on disposition of asset Fair Value Adjustment of Warrants Change in fair value of warrants liability Foreign Currency Transaction Gain (Loss), before Tax Foreign exchange loss (gain) Interest Income (Expense), Net Interest income Amount of the cost of borrowed funds accounted for as interest expense for debt. Fees And Interest On Credit Facility Fees and interest on credit facility Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss and comprehensive loss for the period Earnings Per Share, Basic Net loss per share - basic Earnings Per Share, Diluted Net loss per share - diluted Weighted Average Number of Shares Outstanding, Basic Weighted average number of common shares outstanding - basic Weighted Average Number of Shares Outstanding, Diluted Weighted average number of common shares outstanding - diluted Condensed Consolidated Statements of Changes in Equity Equity Components [Axis] Equity Component [Domain] Common Stock Common stock Additional Paid-in Capital [Member] Additional Paid in Capital AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Loss Retained Earnings [Member] Deficit Shares, Outstanding Balance (in Shares) Balance (in Shares) Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options (Note 10) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercise of stock options (Note 10) (in shares) Number of exercise of stock options (in Shares) Value of stock issued as a result of the exercise of warrants. Stock Issued During Period, Value, Warrants Exercised Exercise of warrant by Allseas (Note 9) Number of share options (or share units) issued on warrants exercised during the current period. Stock Issued During Period, Shares, Warrants Exercised Exercise of warrant by Allseas (Note 9) (in shares) Stock Issued During Period, Value, New Issues Shares issued to Allseas (Note 13) Stock Issued During Period, Shares, New Issues Stock issued during period shares new issue Common shares issued (in shares) Stock Issued During Period, Value, Conversion of Units Conversion of restricted share units, net of shares withheld for taxes (Note 10) Stock Issued During Period, Shares, Conversion of Units Conversion of restricted share units, net of shares withheld for taxes (Note 10) (in shares) Value of stock issued as a result of the Registered direct offering during the period. Stock Issued During Period, Value, Registered Direct Offering Issuance of shares and warrants under Registered Direct Offering, net of expenses (Note 8) Number of share issued under Registered direct offering during the period. Stock Issued During Period, Shares, Registered Direct Offering Issuance of shares and warrants under Registered Direct Offering, net of expenses (Note 8) (in shares) Stock issued under registered direct offering Stock Issued During Period, Value, Employee Stock Purchase Plan Share purchase under Employee Share Purchase Plan (Note 10) Stock Issued During Period, Shares, Employee Stock Purchase Plans Share purchase under Employee Share Purchase Plan (Note 10) (in shares) Number of common shares issued Value of stock issued as a result of PIPE financing during the period. Stock Issued During Period, Value, Private Investment in Public Equity Financing Issuance of shares under PIPE financing - net of expenses Number of shares issued under PIPE financing during the period. Stock Issued During Period, Shares, Private Investment in Public Equity Financing Issuance of shares under PIPE financing - net of expenses (in shares) APIC, Share-based Payment Arrangement, Increase for Cost Recognition Share-based compensation (Note 10) The amount of increase to additional paid-in capital due to expenses settled with share based payments. Additional Paid In Capital, Expenses Settled, Share-based Payments Expenses settled with share-based payments (Note 10) Net Income (Loss) Attributable to Parent Net loss for the period Stock Issued During Period, Value, Issued for Services Shares issued for services received Condensed Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities [Abstract] Operating activities The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Net Loss For Period Net loss for the period Items Not Affecting Cash Abstract Items not affecting cash: The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. Adjustments For Amortization Amortization Operating Lease, Expense Lease expense during the quarter Lease expense Share-based Payment Arrangement, Noncash Expense Expenses settled with share-based payments Amount of expense (income) related to adjustment to fair value of warrant liability. Fair Value Adjustments Of Warrant Change in fair value of warrants liability Foreign Currency Transaction Gain (Loss), Unrealized Unrealized foreign exchange movement Increase (Decrease) in Operating Capital [Abstract] Changes in working capital: The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services and prepaid expenses. Increase (Decrease) in Receivables and Prepaid Expense Receivables and prepayments Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and accrued liabilities Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Investing activities Proceeds from Sale, Maturity and Collection of Investments Cash received from investment in Low Carbon Royalties Payments to Acquire Machinery and Equipment Acquisition of equipment Net Cash Provided by (Used in) Investing Activities Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Financing activities Proceeds from Stock Plans Proceeds from employee share purchase plan Proceeds from Stock Options Exercised Proceeds from exercise of stock options Proceeds from Issuance of Warrants Proceeds from exercise of warrants by Allseas The cash inflow associated with the amount received from entity's Registered direct offering of stock to the public. Proceeds from Issuance Registered Direct Offering Proceeds from Registered Direct Offering The cash outflow for cost incurred directly with the issuance of a Registered direct offering. Payments of Stock Issuance Costs, Registered Direct Offering Expenses paid for Registered Direct Offering Expenses paid for Registered Direct Offering Amount of Proceeds from PIPE financing. Proceeds from PIPE financing Proceeds from PIPE financing Payments of Stock Issuance Costs Expenses paid for PIPE financing Proceeds from Issuance of Common Stock Proceeds from issuance of shares Payment, Tax Withholding, Share-based Payment Arrangement Taxes withheld and paid on share-based compensation Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Decrease in cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Impact of exchange rate changes on cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash - end of period Cash - beginning of period Nature of Operations Nature of Operations [Text Block] Nature of Operations No definition available. Basis of Presentation Business Description and Basis of Presentation [Text Block] Basis of Presentation N/A Use of Estimates The entire disclosure of use of estimates. Use Of Estimates Disclosure [Text Block] Use of Estimates Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Fair Value of Financial Instruments Significant Accounting Policies Adopted During the Period Significant Accounting Policies [Text Block] Significant Accounting Policies Adopted During the Period The entire disclosure about strategic partnerships. Strategic Partnerships The entire disclosure of strategic partnerships. Strategic Partnership Disclosure [Text Block] Strategic Partnerships n/a Exploration and Evaluation Expenses The entire disclosure for the exploration and evaluation expenses. Exploration and Evaluation Expenses [Text Block] Exploration and Evaluation Expenses No definition available. Registered Direct Offering The entire disclosure for Registered Direct Offering. Registered Direct Offering [Text Block] Registered Direct Offering The disclosure of Warrant liability abstract. Warrants The entire disclosure of warrant liability. Warrants Liability [Text Block] Warrants Share-Based Compensation Share-based Payment Arrangement [Text Block] Share-Based Compensation Loss per Share Earnings Per Share [Text Block] Loss per Share Credit Facility with Allseas Affiliate Debt Disclosure [Text Block] Credit Facility with Allseas Affiliate Exclusive Vessel Use Agreement with Allseas Disclosure [Abstract] Exclusive Vessel Use Agreement with Allseas The entire disclosure of exclusive vessel use agreement with allseas. Exclusive Vessel Use Agreement with Allseas Disclosure [Text Block] Exclusive Vessel Use Agreement with Allseas Related Party Transactions Related Party Transactions Disclosure [Text Block] Related Party Transactions Commitments and Contingent Liabilities Commitments and Contingencies Disclosure [Text Block] Commitments and Contingent Liabilities Segmented Information Segment Reporting Disclosure [Text Block] Segmented Information Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Use of Estimates, Policy [Policy Text Block] Use of Estimates Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value of Financial Instruments Investment, Policy [Policy Text Block] Investments Lessee, Leases [Policy Text Block] Leases Investment [Table Text Block] Schedule of investment Schedule Of Reconciliation Exploration Licenses Table Text Block Schedule of reconciliation exploration licenses Class of Warrant or Right [Table] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] The member stands for private placement warrants. Private Warrants [Member] Private placement warrants Private Warrants Represent information pertaining to class A warrant. Classa Warrant [Member] Class A Warrant Class A Warrants Class of Warrant or Right [Line Items] Changes in the fair value of warrants liability: Class of Warrant or Right Schedule of Derivative Liabilities at Fair Value [Table Text Block] Schedule of changes in the fair value of warrant liabilities Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Schedule of fair value measurement input Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Summary of the RSU activity Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of anti-dilutive common equivalent shares Lessee, Operating Lease, Disclosure [Table Text Block] Net amount of lease liability and right-of-use asset Costs Incurred in Oil and Gas Property Acquisition, Exploration, and Development Activities [Table] Legal Entity [Axis] Entity [Domain] Represents information pertaining to the Company's wholly-owned subsidiary, Nauru Ocean Resources Inc. ("NORI"). Nauru Ocean Resources Inc NORI Represents information pertaining to the Company's wholly-owned subsidiary, Tonga Offshore Mining Limited ("TOML"). Tonga Off shore Mining Limited TOML Represents information pertaining to the Company's wholly-owned subsidiary, Marawa Research and Exploration Limited ("Marawa"). Marawa Research and Exploration Limited Marawa Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items] Exclusive rights to explore for polymetallic nodules: Area of exploration right granted. Area of Exploration Right Granted Area of exploration granted (in square km) Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. Fair Value, Assets, Level 1 to Level 2 Transfers, Amount1 Fair value of assets, Transfers from Level 1 to Level 2 Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. Fair Value Assets, Level 2 To Level 1 Transfers Amount 1 Fair value of assets, Transfers from Level 2 to Level 1 Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount 1 Fair value of liabilities, Transfers from Level 1 to Level 2 Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount 1 Fair value of liabilities, Transfers from Level 2 to Level 1 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net Fair value of liabilities, Transfers into (out of) Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Fair value of assets, Transfers into (out of) Level 3 Schedule of Finite-Lived Intangible Assets [Table] Counterparty Name [Axis] Counterparty Name [Domain] Represents information pertaining to strategic alliance with allseas pilot mining test project. Strategic Alliance with Allseas Pilot Mining Test Project [Member] Strategic Alliance with Allseas Pilot Mining Test Project Represents the information pertaining to Allseas. Allseas [Member] Allseas Warrant [Member] Outstanding warrants Statistical Measurement [Axis] Statistical Measurement [Domain] Minimum Minimum Maximum Maximum Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Represents the information pertaining to Exclusive Vessel Use Agreement with Allseas. Exclusive Vessel Use Agreement [Member] Exclusive Vessel Use Agreement Sale of Stock [Axis] Sale of Stock [Domain] Represents the information pertaining to direct offering. Direct Offering [Member] Direct offering Registered direct offering Finite-Lived Intangible Assets [Line Items] Strategic Partnerships Settlement Liabilities, Current Final settlement Stock Issued During Period, Shares, Other Stock issued (in shares) Shares Issued, Price Per Share Common shares per share It represents payments related to milestone payment. Milestone Payment Third and final payment Sale of Stock, Number of Shares Issued in Transaction Number of shares issued Proceeds from Issuance or Sale of Equity Gross proceeds Investment Owned, Balance, Shares Shares owned Investment Owned, Percent of Net Assets Percentage of common stock shares outstanding Class of Warrant or Right, Number of Securities Called by Warrants or Rights Number of warrants issued Number of warrants issued Represents the percentage of amount contribution to gross royalty. Percentage Of Contribution To Gross Royalty Percentage of contribution to gross royalty Represents the percentage of repurchase of gross royalty. Percentage Of Repurchase Of Gross Royalty Percentage of repurchase of gross royalty Represents the percentage of reduction in NORI royalty. Percentage Of Reduction In NORI Royalty Percentage of reduction in NORI royalty Represents the percentage of owned carbon royalty. Percentage Of Owned Carbon Royalty Percentage of owned carbon royalty Represents the percentage of common stock shares received. Percentage Of Common Stock Shares Received Percentage of common stock shares received Royalty Expense Royalty expense Represents the percentage of gross royalty in first license block. Increase In Percentage Of Gross Royalty In First License Block Increase in percentage of gross royalty in first license block Represents the percentage of gross royalty in second license block. Increase In Percentage Of Gross Royalty In Second License Block Increase in percentage of gross royalty in second license block Represents the percentage of ownership in gross royalty. Decrease In Percentage Of Ownership In Gross Royalty Decrease in percentage of gross royalty Investments Investment as at September 30, 2023 Investments Number of shares issued during period upon exercise of warrants. Stock Issued During Period, Shares, Exercise of Warrants Shares issued upon the exercise of the warrant Amount of exercise fee received up on exercise of warrants. Class of Warrant or Right, Exercise Fee Received Exercise fee received Amount of Fair value of NORI Royalty. Fair Value Of NORI Royalty Fair value of NORI Royalty Net consideration received Amount of cash received. Cash Received Cash received Amount of cost of investment on transaction date. Cost Of Investment On Closing Date Cost of Investment on Closing Date Equity Method Investments Equity-accounted investment loss for the nine months ended September 30, 2023 Gain (Loss) on Investments Net loss on investments Contract with Customer, Liability, Noncurrent Carrying value No definition available. Schedule Of Break Down Of Exploration Expenses [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Represents information pertaining to NORI Exploration Contract. NORI Exploration Contract [Member] NORI Exploration Contract Represents information pertaining to Marawa Agreements. Marawa Option Agreement [Member] Marawa Option Agreement Represents information pertaining Tonga Offshore Mining Limited Exploration.. TOML Exploration Contract [Member] TOML Exploration Contract No definition available. Schedule Of Break Down Of Exploration Expenses [Line Items] Exploration and Evaluation Expenses The amount of expense related to environmental studies. Environmental Studies Environmental Studies Exploration labor. Exploration Labor Exploration Labor Amount related to common Share options-based payments. Common Shares Options Based Payments Share-Based Compensation (Note 10) Represents the expense related to mining, technological and process development. Mining, Technological And Process Development Mining, Technological and Process Development The amount of expense related to Pilot Mining Test. Exploration Expenses In Pilot Mining Test PMTS The amount of expense related to prefeasibility studies. Prefeasibility Studies Prefeasibility Studies Represents the expense related to sponsorship, training and stakeholder engagement. Sponsorship, Training And Stakeholder Engagement Sponsorship, Training and Stakeholder Engagement Represents the expense related to other exploration and evaluation expenses. Other Exploration and Evaluation Expenses. Other Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent event Scenario [Axis] Scenario [Domain] This member stands for remaining commitment under first installment. Remaining Commitment Under First Installment [Member] Remaining commitment under first installment This member stands for remaining commitment under second installment. Remaining Commitment Under Second Installment [Member] Remaining commitment under second installment Subsidiary, Sale of Stock [Line Items] Registered Direct Offering The number of shares agreed to issue or sell by the subsidiary or equity method investee per stock transaction. Sale Of Stock, Number Of Shares Agreed To Sell And Issue Number of shares agreed to sell and issue The number of shares for each warrant. Number Of Shares Per Warrant Number of shares per warrant Common stock of per shares (in Dollars per share) Share price Fairvalue of common stock share Class of Warrant or Right, Exercise Price of Warrants or Rights Exercise price of warrants Sale of Stock, Consideration Received on Transaction Net proceeds The cash inflow associated with the amount received from entity's Registered direct offering of stock, net of stock issuance costs. Proceeds from Issuance Registered Direct Offering, Net Of Stock Issuance Costs Net proceeds from Registered Direct Offering The amount of remaining committed funding to be received from investors. Remaining Committed Funding Remaining committed fund The number of installments in which remaining committed funding would be paid. Number Of Installments, Commuted Funding To Be Received Number of installments Measurement Input Type [Axis] Measurement Input Type [Domain] Measurement Input, Price Volatility [Member] Volatility The member stands for public warrants. Public Warrants [Member] Public warrants Represents the information pertaining to Allseas Warrants. Allseas Warrants Allseas Warrants This member stands for the scenario, where redemption of warrants when the price per share of class a common stock equals or exceeds $18.00. Redemption Of Warrants When Price Per Share Of Class Common Stock Equals Or Exceeds 18.00 Represents the information pertaining to SOAC. SOAC IPO [Member] IPO Private Placement [Member] Private Warrants Represents the warrants to acquire shares of common stock in business combination. Business Combination, Warrants to Acquire Shares of Common Stock Warrants to acquire shares of common stock Class of Warrant or Right, Outstanding Number of warrants outstanding Warrants and Rights Outstanding Value of outstanding Public Warrants The issuance price of additional capital which would trigger an adjustment in the exercise price of the warrant. Warrant Exercise Price Adjustment Trigger Issue price per share The number of consecutive trading days within a specified range when the reported sale price must exceed the specified amount. Warrant Redemption Measurement Consecutive Trading Days Over Specified Amount Trading days for redemption of public warrants The number of trading days over which the reported sale price is measured when determining the redemption price. Warrant Redemption Measurement Period Consecutive trading days for redemption of public warrants Fair value of financial instrument classified as a liabilities measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring and Nonrecurring Basis, Liability Value Warrants liability as at September 30, 2023 Warrants liability as at December 31, 2022 Fair value of outstanding recorded as warrants liability Class of Warrant or Right, Number of Securities Called by Each Warrant or Right Number of shares issuable per warrant Derivative Liability, Measurement Input Warrant liability measurement input Amount of increase (decrease) of financial instrument classified as a liabilities measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring and Nonrecurring Basis, Liability, Gain (Loss) Increase in fair value of warrants liability Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price Exercise price Share Price Share price Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Term (years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Represent the measurement input call price threshold. Measurement Input Call Price Threshold Call price threshold Stock Options (Details) [Table] Plan Name [Axis] Plan Name [Domain] This member stands for short term incentive plan. Short Term Incentive Plan [Member] Short-Term Incentive Plan Represents information pertaining to 2021 Incentive equity plan (the "Plan"). 2021 Incentive Equity Plan Derivative Instrument [Axis] Derivative Contract [Domain] Equity Option [Member] Equity option Award Type [Axis] Award Type [Domain] This member stands for longterm incentive plan. Long Term Incentive Plan [Member] Long-term Incentive Plan Restricted stock units Restricted Stock Units ("RSUs") RSU Employee Stock Option [Member] Outstanding options to purchase common shares Employee stock option Grantee Status [Axis] Grantee Status [Domain] Non-employee directors Income Statement Location [Axis] Income Statement Location [Domain] General and administration expenses General and administration expenses This member stands for exploration and evaluation. Exploration and evaluation activities Exploration and evaluation activities Stock Options (Details) [Line Items] Share-Based Compensation Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Aggregate number of common shares reserved for issuance under the plan Additional Number of shares authorized for issuance under share-based payment arrangement. Additional Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Additional shares including to the plan 2022 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Stock option number of shares outstanding (in shares) Common Shares issued and outstanding percentage. Common Share Issued And Outstanding Percentage Common Shares issued and outstanding percentage Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Number of stock options outstanding (in shares) Share-based Payment Arrangement, Expense Share based compensation expense Vesting [Axis] Vesting [Domain] Vesting Immediately Vesting fully on the first anniversary of the grant date Vesting in thirds on each anniversary of the grant date Vesting in fourths on each anniversary of the grant date Title of Individual [Axis] Title of Individual [Domain] Represents information pertaining to consultant. Consultant [Member] Consultant Represents Non-Employee Directors Member. Non-Employee Directors [Member] Non-Employee Directors Represents the information pertaining to prepayment for services. As Prepayment for Services [Member] As prepayment for the services Represents the information pertaining to payment for the 2022 LTIP awards. As Payment for 2022 LTIP Awards [Member] As payment for the 2022 LTIP awards Represents the information pertaining to payment for the 2021 LTIP awards. As Payment for 2021 LTIP Awards [Member] As payment for the 2021 LTIP awards Represents the information pertaining to a sign-on grant. As a Sign-on Grant [Member] As a sign-on grant Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted Shares, Issued Shares issued Accrued Liabilities Amount to settle liabilities Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted average grant date fair value Consulting services Consulting services Professional and consulting fees Amount of share-based compensation arrangement by share-based payment award, equity instruments other than options, fair value, granted Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Fair Value, Granted Total fair value of units granted Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Total unrecognized share-based compensation expense Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Aggregate vested units outstanding Represents Employee Share Purchase Plan Member. Employee Share Purchase Plan [Member] Outstanding shares under ESPP Employee Share Purchase Plan Common Stock, Capital Shares Reserved for Future Issuance Common shares reserved for issuance Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized Number of additional shares added Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Aggregate reserved common shares have been issued Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Outstanding Stock Maximum Maximum percentage of annual increase for issuing shares Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Restricted Stock [Member] Outstanding RSUs Represents information pertaining to special shares and options to purchase special shares. Special Shares And Options To Purchase Special Shares [Member] Outstanding Special Shares and options to purchase Special Shares Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Loss per Share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Total anti-dilutive common equivalent shares Line of Credit Facility [Table] Credit Facility [Axis] Credit Facility [Domain] Represents information pertaining to unsecured credit facility. Unsecured Credit Facility [Member] Unsecured Credit Facility Line of Credit Facility [Line Items] Credit Facility with Allseas Affiliate Line of Credit Facility, Maximum Borrowing Capacity Aggregate borrowed amount Debt Instrument, Term Debt instrument term Line of Credit Facility, Interest Rate During Period Interest rate The effective kind interest rate during the reporting period. Line of Credit Facility, Kind Interest Rate During Period Kind interest rate Line of Credit Facility, Interest Rate at Period End Equal interest rate Line of Credit Facility, Expiration Date Maturity date Line of Credit Facility, Interest Rate Description Line of credit facility interest rate term Amount of underutilization fees which would be payable only in the event the Credit Facility is not drawn down at the time such fees are payable. Underutilization fee Payable In the Event of Failure to Draw Down from Credit Facility Underutilization fee payable in the event of default Underutilization fees payable only in the event of Credit Facility Operating Lease, Liability Lease liability Lease liability Lease liability Operating Lease, Liability [Abstract] Lease Liability Short-Term Lease Payments Payments made during the quarter by issuing 4.15 million common shares Finance Lease, Right-of-Use Asset, after Accumulated Amortization [Abstract] Right-of-use Asset Related Party Transactions (Details) [Table] SSCS Pte. Ltd [Member] SSCS Pte. Ltd Ocean Renaissance LLC Ocean Renaissance LLC Related Party [Axis] Related Party [Domain] Related party This member stands for Chief Ocean Scientist . Chief Ocean Scientist [Member] Chief Ocean Scientist Project [Axis] Project [Domain] Represents information pertaining to Exploration and Evaluation. Exploration and Evaluation Exploration and Evaluation Project Management Texhnology Services [Member] Project Management Texhnology Services [Member] Project Management Texhnology Services Represents the information pertaining to DeepGreen Engineering Pte. Ltd. DeepGreen Engineering Pte. Ltd [Member] DeepGreen Engineering Pte. Ltd The amount represents the ERAS Capital LLC [Member] .. ERAS Capital LLC [Member] ERAS Capital LLC Related Party Transactions (Details) [Line Items] Related Party Transactions The amount represents the underutilization fees. Undertutilization Fee Undertutilization fee Other Liabilities Amounts payable Related Party Transaction, Amounts of Transaction Amount payable on related party transaction Other Receivables Other receivables Repayment of Notes Receivable from Related Parties Repayment of notes receivable from related parties Notes Payable Outstanding amount payable Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Line Items] Commitments and Contingent Liabilities Long-term Purchase Commitment, Amount Spending committed Long-term Purchase Commitment, Period Commitments plan submission period (in years) Maximum estimated expenditure for five year period. Maximum Estimated Expenditure for Five Year Period Maximum estimated expenditure for five year period Other Commitment Other commitment Purchase Obligation Purchase obligations Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segmented Information Number of Operating Segments Number of operating segment