Accelerated Share Repurchases Final Price Paid Per Share Average market price during the period Accelerated Share Repurchases Initial Price Paid Per Share Common stock initial exercise price Accounting Policies [Abstract] Accounting Policies [Abstract] Accounts Notes And Loans Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts Notes Loans And Financing Receivable By Receivable Type [Axis] Receivable Type [Axis] Accounts Payable Current Accounts payable Accounts Receivable Gross Current Accounts receivable, gross Accounts Receivable Net Current Accounts receivable and other, net Accounts receivable, net Accounts Receivable Related Parties Receivable reserve Accounts receivables transferred between related parties. Accounts Receivables Transferred Between Related Parties Accounts receivable transferred between related parties Accrued Liabilities Current Accrued expenses and other Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Accumulated depreciation Additional financing. Additional Financing [Member] Additional Financing [Member] Additional notes. Additional Notes [Member] Additional Note [Member] Additional Paid In Capital Additional paid-in capital Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net loss to net cash (used) by operating activities: Allocated Share Based Compensation Expense Share-based compensation Allowance For Doubtful Accounts Receivable Current Reserves for doubtful accounts Reserve for doubtful accounts receivable Amendment Flag Amendment Flag Amortization Of Financing Costs Loan fee amortization Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Out of the money options and warrants excluded Potential common shares excluded from EPS Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Name [Domain] Antidilutive Securities, Name [Domain] Artifacts. Artifacts Artifacts Assets Total assets Assets [Abstract] ASSETS Assets Current Total current assets Assets Current [Abstract] CURRENT ASSETS Assets Noncurrent [Abstract] NON-CURRENT ASSETS Award Type [Axis] Award Type [Axis] Borrowing base value of secured collateral percentage. Borrowing Base Value Of Secured Collateral Percentage Value of secured collateral, percent Building and land. Building And Land Building and land Business Acquisition Acquiree [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition [Axis] Business Acquisition [Axis] Business Combinations [Abstract] Business Combinations [Abstract] Cambridge project. Cambridge Project [Member] "Cambridge" Project [Member] Capital Expenditures Incurred But Not Yet Paid Equipment purchased with financing Cash And Cash Equivalents [Abstract] Cash and Cash Equivalents [Abstract] Cash And Cash Equivalents At Carrying Value CASH AT END OF PERIOD CASH AT BEGINNING OF PERIOD Cash and cash equivalents Consolidated cash balance Cash And Cash Equivalents Disclosure [Text Block] RESTRICTED CASH Cash And Cash Equivalents Period Increase Decrease NET (DECREASE) INCREASE IN CASH Cash And Cash Equivalents Policy [Text Block] Cash, Cash Equivalents and Restricted Cash Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] NON-CASH TRANSACTIONS: Cash Uninsured Amount Uninsured cash balance Chatham rock phosphate ltd. Chatham Rock Phosphate Ltd [Member] Chatham Rock Phosphate, Ltd. [Member] Class Of Stock [Domain] Class of Stock [Domain] Class Of Warrant Or Righst Date From Which Warrants Or Rights Exercisable Warrants expiration date Class of warrant or right adjusted exercise price of warrants or rights. Class Of Warrant Or Right Adjusted Exercise Price Of Warrants Or Rights Adjusted warrants exercise price Class Of Warrant Or Right [Axis] Class of Warrant or Right [Axis] Class Of Warrant Or Right [Domain] Class of Warrant or Right [Domain] Class Of Warrant Or Right Exercised Class Of Warrant Or Right Exercised Warrants linked to common stock, exercised Class Of Warrant Or Right Exercise Price Of Warrants Or Rights 1 Warrant exercise price Warrants exercise price per share Class Of Warrant Or Right Outstanding Warrants linked to common stock, outstanding Warrants outstanding Class Of Warrant Or Right, Warrants Issued Class Of Warrant Or Right Warrants Issued Warrants issued to acquire common shares Commitments And Contingencies Commitments and contingencies (Note H) Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments And Contingencies Disclosures [Abstract] Commitments And Contingencies Disclosures [Abstract] Commitments And Contingencies Disclosures [Abstract] Commitments And Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES Common shares issued per unit. Common Shares Issued Per Unit Common shares, issued, per unit Common Stock [Member] Common Stock [Member] Common Stock Other Shares Outstanding Common shares linked to derivative liabilities Common Stock Par Or Stated Value Per Share Common stock, par value Common Stock Shares Authorized Common stock, shares authorized Common Stock Shares Issued Common stock, shares issued Common stock shares issued as payment related to outstanding principal amount. Common Stock Shares Issued As Payment Related To Outstanding Principal Amount Common stock shares issued as payment in outstanding principal Common Stock Shares Outstanding Common stock, shares outstanding Common Stock Value Common stock - $.0001 par value; 150,000,000 shares authorized; 85,229,295 and 83,882,577 issued and outstanding, respectively Common stock, shares value representing payment for principal Comprehensive Income Policy Policy [Text Block] Comprehensive Income Concentration of credit risk. Concentration Of Credit Risk [Line Items] Concentration Of Credit Risk [Line Items] Concentration Risk Disclosure [Text Block] CONCENTRATION OF CREDIT RISK Consolidation Policy [Text Block] Principles of Consolidation Conversion Of Stock Shares Converted 1 Net share position in NMI Conversion period immediately prior to applicable. Conversion Period Immediately Prior To Applicable Conversion price applicable period Convertible Debt [Member] Initial Note [Member] Convertible Notes Payable Convertible notes payable Convertible Notes Payable [Member] Face Value $10,000,000, 8% Convertible Senior Note Payable [Member] Convertible Preferred Stock [Member] Convertible Preferred Stock Excluded from EPS [Member] Convertible Preferred Stock Shares Issued Upon Conversion Preferred voting Class A stock Cost Of Goods Sold Cost of sales - artifacts and other Counterparty Name [Axis] Counterparty Name [Axis] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Cumulative and outstanding losses. Cumulative And Outstanding Losses Loss from unconsolidated entity Current Federal Tax Expense Benefit Income tax expense Current Fiscal Year End Date Current Fiscal Year End Date Debt Conversion Converted Instrument Amount 1 Accounts receivable converted to common shares, amount Debt repayment with common shares Debt Conversion Converted Instrument Shares Issued 1 Common shares received in settlement of accounts receivable/Preferred non-voting Class A stock Debt Conversion Converted Instrument Type Debt instrument amortization payment description Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument Basis Spread On Variable Rate 1 Credit agreement margin LIBOR rate Debt instrument basis spread on variable rate points. Debt Instrument Basis Spread On Variable Rate Points Basis spread on variable rate, points Debt Instrument Carrying Amount Principal amount of loan, outstanding Debt Instrument Collateral Amount Project term loan collateral value Debt instrument conversion reset conversion price description. Debt Instrument Conversion Reset Conversion Price Description Debt instrument conversion reset conversion price description Debt Instrument Convertible Conversion Price 1 Conversion share price per share Initial conversion price Debt Instrument Convertible Stock Price Trigger Debt instrument conversion price Debt Instrument Convertible Terms Of Conversion Feature Debt instrument amortization payment description Debt Instrument Face Amount Restricted cash for term loan Company's consolidated debt, face amount Original principal amount Debt Instrument Interest Rate Increase Decrease Basis spread on variable rate, points Debt Instrument Interest Rate Stated Percentage Interest rate, stated percentage Company's consolidated debt, interest rate Convertible notes Interest rate Debt Instrument Interest Rate Terms Debt instrument description Debt instrument issued face amount. Debt Instrument Issued Face Amount Convertible notes Debt Instrument [Line Items] Debt Instrument [Line Items] Debt instrument maturities month year. Debt Instrument Maturities Month Year Loan maturity period Debt Instrument Maturity Date Convertible notes maturity date Maturity date Debt Instrument Maturity Date Range Start 1 Note repayment commencing date Debt instrument original principal payment. Debt Instrument Original Principal Payment Original principal installments Debt Instrument Periodic Payment Periodic payment Debt Instrument Periodic Payment Principal Periodic payments, principal Debt instrument principal amount redeemed. Debt Instrument Principal Amount Redeemed Principal amount outstanding Debt instrument principal payments. Debt Instrument Principal Payments Principal payment Debt Instrument Repurchased Face Amount Original principal amount of repurchased note Debt instrument revised maturity date. Debt Instrument Revised Maturity Date New maturity date of mortgage loan Debt Instrument [Table] Schedule of Long-term Debt Instruments [Table] Debt Issuance Costs Debt related expenses Deferred Income And Revenue Participation Rights [Text Block] Deferred Income And Revenue Participation Rights [Text Block] DEFERRED INCOME AND REVENUE PARTICIPATION RIGHTS Deferred Revenue Deferred income and participating revenue rights Deferred Revenue Arrangement By Type [Table] Deferred Revenue Arrangement, by Type [Table] Deferred Revenue Arrangement [Line Items] Deferred Revenue Arrangement [Line Items] Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Domain] Deferred Revenue [Domain] Deferred Revenue Current Deferred income and revenue participation rights Deferred Revenue Disclosure [Abstract] Deferred Revenue Disclosure [Abstract] Deferred Revenue Noncurrent Deferred income and revenue participation rights Participating revenue rights Deferred Revenue Revenue Recognized Deferred revenue, amortization Deferred Tax Assets Liabilities Net Net deferred tax asset Deferred Tax Assets Operating Loss Carryforwards Net operating loss carryforwards, federal Deferred Tax Assets Operating Loss Carryforwards Foreign Net operating loss carryforwards, foreign Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration Income tax net operating loss carryforwards Deferred Tax Assets Valuation Allowance Valuation allowance Depreciation Depreciation and amortization Derivative By Nature [Axis] Derivative, by Nature [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Derivative financial instruments fair value assumptions contractual conversion rate. Derivative Financial Instruments Fair Value Assumptions Contractual Conversion Rate Contractual conversion rate Derivative financial instruments fair value assumptions contractual exercise rate. Derivative Financial Instruments Fair Value Assumptions Contractual Exercise Rate Contractual exercise rate Derivative financial instruments fair value assumptions contractual interest rate. Derivative Financial Instruments Fair Value Assumptions Contractual Interest Rate Contractual interest rate Derivative financial instruments fair value assumptions credit risk adjusted yield rate range of rates. Derivative Financial Instruments Fair Value Assumptions Credit Risk Adjusted Yield Rate Range Of Rates Range of equivalent credit risk adjusted yields Range of effective contractual conversion rates. Derivative Financial Instruments Fair Value Assumptions Effect Of Contractual Conversion Rates Range of effective contractual conversion rates Derivative financial instruments fair value assumptions linked common shares. Derivative Financial Instruments Fair Value Assumptions Linked Common Shares Linked common shares Derivative financial instruments fair value assumptions market risk adjusted rate range of rates. Derivative Financial Instruments Fair Value Assumptions Market Risk Adjusted Rate Range Of Rates Range of equivalent market risk adjusted interest rates Derivative financial instruments fair value assumptions quoted market price. Derivative Financial Instruments Fair Value Assumptions Quoted Market Price Quoted market price on valuation date Derivative financial instruments fair value assumptions term in years. Derivative Financial Instruments Fair Value Assumptions Term Term (years) Derivative financial instruments fair value contractual term to maturity. Derivative Financial Instruments Fair Value Contractual Term To Maturity Contractual term to maturity Derivative Gain Loss On Derivative Net Derivative income (expense) Derivative income expense net. Derivative Income Expense Net Total derivative income (expense) Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Instruments And Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments And Hedging Activities Disclosure [Text Block] DERIVATIVE FINANCIAL INSTRUMENTS Derivative Liabilities Current Derivative liabilities Derivative [Line Items] Derivative [Line Items] Derivative Name [Domain] Derivative, Name [Domain] Derivative [Table] Derivative [Table] Distribution ratio of remaining net proceed. Distribution Ratio Of Remaining Net Proceed Ratio of remaining net proceed Dividends received from subsidiary. Dividends Received From Subsidiary Dividend from subsidiaries Document and entity information. Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Period End Date Document Period End Date Document Type Document Type Dorado ocean resources limited. Dorado Ocean Resources Limited [Member] Dorado Ocean Resources, Ltd. [Member] Earnings Per Share [Abstract] NET (LOSS) PER SHARE Earnings Per Share Basic Net (loss) per share - basic Earnings Per Share Basic And Diluted Basic and diluted (See NOTE B) Earnings Per Share Diluted Net (loss) per share - diluted Earnings Per Share Policy [Text Block] Earnings Per Share Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate Effective tax rate Eligible employee threshold percentage. Eligible Employee Threshold Percentage Eligible employee threshold percentage Embedded Derivative Financial Instruments [Member] Compound Embedded Derivative [Member] Entity Central Index Key Entity Central Index Key Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity Filer Category Entity Filer Category Entity Registrant Name Entity Registrant Name Equity [Abstract] Equity [Abstract] Equity Component [Domain] Equity Component [Domain] Equity Method Investment Ownership Percentage Ownership percentage Equity Method Investments Book value of investment Equity Method Investments And Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments Disclosure [Text Block] INVESTMENTS IN UNCONSOLIDATED ENTITIES Equity Method Investments Fair Value Disclosure Fair value of investment Equity method investments number of membership unit. Equity Method Investments Number Of Membership Unit Number of membership units Equity method investments shares acquired. Equity Method Investments Shares Acquired Acquisition of additional shares Equity method investments shares exchange ratio. Equity Method Investments Shares Exchange Ratio Shares issued per each share exchanged Equity method investments shares owned. Equity Method Investments Shares Owned Shares owned Estimated Annual Effective Tax Rate Estimated Annual Effective Tax Rate Estimated annual effective tax rate Attraction related revenues derived from the rental of our exhibit to museums and science centers and admission and merchandise revenue from the rental of the exhibit. Exhibit Revenue Exhibit Revenue derived from chartering vessels to customers for deep-sea exploration and recovery operations. Expedition Charter Revenue Expedition Fair Value Assumptions Expected Term Implied expected term to maturity Fair Value Assumptions Expected Volatility Rate Range of market volatilities Range of volatilities Fair Value Assumptions Risk Free Interest Rate Risk-free rates Fair Value Assumptions Weighted Average Volatility Rate Range of equivalent volatilities Fair value assumption volatility range. Fair Value Assumption Volatility Range [Abstract] Market volatility: Fair Value By Fair Value Hierarchy Level [Axis] Fair Value, Hierarchy [Axis] Fair Value Inputs Level 1 [Member] Level 1 [Member] Fair Value Inputs Level 2 [Member] Level 2 [Member] Fair Value Inputs Level 3 [Member] Level 3 [Member] Fair Value Inputs Probability Of Default Custom lattice variable: Probability of exercisability (434,027 linked common shares) Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] Changes in Fair Value Inputs and Assumptions