Significant Accounting Policies and Recent Accounting Pronouncements [Abstract] Accounts payable Accounts Payable, Current Due to related parties, current Voyage commissions, management fees and other expenses Accounts Payable, Related Parties, Current Accounts Receivable Trade, Net [Abstract] Accounts Receivable, after Allowance for Credit Loss [Abstract] Accounts receivable trade, net Accounts Receivable, after Allowance for Credit Loss, Current Accrued liabilities (including $405,000 and $0 accrued interest to related party, respectively) Accrued Liabilities, Current Ending balance Beginning balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Additional paid-in capital Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Adjustments to reconcile net income/(loss) to net cash provided by/(used in) Operating activities: Beneficial conversion feature pursuant to the issuance of the $5.0 Million Convertible Debentures (Note 6) Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt Amortization of fair value of acquired charter Amortization of above and below Market Leases Total assets Assets ASSETS Assets [Abstract] Assets [Abstract] Total current assets Assets, Current Total non-current assets Assets, Noncurrent CURRENT ASSETS: NON-CURRENT ASSETS: Assets, Noncurrent [Abstract] Fair Value of Acquired Time Charter [Abstract] Below Market Lease [Abstract] Intangible liability for below market time charter Below Market Lease, Net Unpaid vessel acquisition and other vessel improvement costs (included in Accounts payable and Accrued liabilities) Capital Expenditures Incurred but Not yet Paid Amortization Capitalized Contract Cost, Amortization Balance at beginning of period Balance at end of period Deferred charges, net Capitalized Contract Cost, Net, Noncurrent Deferred charges, net Deferred assets Net increase in cash, cash equivalents, and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, cash equivalents and restricted cash at the beginning of the period Cash, cash equivalents and restricted cash at the end of the period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Number of securities called by warrants (in shares) Class of Warrant or Right [Axis] Class of Stock [Line Items] Class of Stock [Domain] Class of Warrant or Right [Domain] Warrant exercise price (in dollars per share) Warrant exercise price per share (in dollars per share) Number of securities called by each warrant (in shares) Warrants outstanding (in shares) Commitments and Contingencies Commitments and Contingencies, Policy [Policy Text Block] Commitments and contingencies [Abstract] Commitments and contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and contingencies Common Shares [Abstract] Common Shares [Member] Common Stock [Member] Common shares, shares issued (in shares) Common shares, issued (in shares) Common Stock, Shares, Issued Common shares, par value (in dollars per share) Common shares, par value (in dollars per share) Common shares, $0.001 par value; 1,950,000,000 shares authorized; 13,121,238 shares issued and outstanding as of December 31, 2020, and 94,610,088 issued and outstanding as of December 31, 2021 Common shares, authorized (in shares) Common Stock, Shares Authorized Common shares, shares outstanding (in shares) Common shares, outstanding (in shares) Number of outstanding common shares (in shares) Other Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Comprehensive income/(loss) Comprehensive income/(loss) Concentration Risk [Table] Concentration Risk Type [Domain] Concentration risk percentage Concentration Risk, Percentage Concentration Risk Benchmark [Domain] Concentration Risk Type [Axis] Concentration Risk [Line Items] Concentration Risk Benchmark [Axis] Principles of Consolidation Consolidation, Policy [Policy Text Block] Deferred revenue, net Deferred liabilities Deferred revenue amortization Contract with Customer, Liability, Revenue Recognized Contractual purchase obligations due in 2022 Contractual purchase obligations due in 2023 Contractual Obligation, to be Paid, Year Two Convertible debt outstanding Corporate [Member] Total expenses Costs and Expenses EXPENSES: Costs and Expenses [Abstract] Customer Concentration [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Table] Vessel Revenues Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Abstract] Number of trading days Percentage of common stock price paid if redemption price is paid in common shares Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Monthly Installments 1 to 18 [Member] Quarterly Installments 1 to 4 [Member] Debt Instrument, Redemption, Period [Domain] Term of loan Maturity period Debt Instrument, Redemption, Period [Axis] Balloon installment payable at maturity Monthly Installments 19 to 59 [Member] Quarterly Installments 5 to 16 [Member] Long-Term Debt [Abstract] Weighted average interest rate Debt, Weighted Average Interest Rate Converted amount of debt Shares issued in connection with the settlement of the $5.0 Million Convertible Debentures Debt Conversion, Converted Instrument, Amount Conversion price (in dollars per share) Debt Instrument [Axis] Frequency of periodic payment Frequency of periodic payment Total long-term debt Long-term debt Long-term Debt, Gross Face amount Face amount Schedule of Long-term Debt Instruments [Table] Debt Instrument [Line Items] Long-Term Debt [Abstract] Loan Facilities [Abstract] Debt Instruments [Abstract] Interest rate Debt Instrument, Interest Rate, Stated Percentage Maturity date Debt Instrument, Maturity Date Borrowers Debt Instrument, Issuer Installment payment Debt Instrument, Periodic Payment Debt Instrument, Name [Domain] Deferred charges, net [Abstract] Dry-Docking and Special Survey Costs Deferred Charges, Policy [Policy Text Block] Deferred Dry-Docking Costs, Net Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Less: Non-Current portion of deferred finance costs Debt Issuance Costs, Noncurrent, Net Less: Current portion of deferred finance costs Debt Issuance Costs, Current, Net Less: Deferred financing costs Debt Issuance Costs, Net Period depreciation Depreciation Vessels' Depreciation [Abstract] Depreciation [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Vessels' Depreciation Depreciation, Depletion, and Amortization [Policy Text Block] Due from related party Due from related party - current Due from Related Parties, Current Due from related party - non-current Due from related party Due to related party Due to Related Parties Due to related party - current Due to Related Parties, Current Earnings/ (Loss) Per Share Earnings/ (Losses) per Common Share Earnings Per Share, Policy [Policy Text Block] Earnings/(Loss) per common share, basic (in dollars per share) Earnings Per Share, Basic Earnings/ (Loss) Per Share [Abstract] Earnings/(Loss) per common share, diluted (in dollars per share) Earnings Per Share, Diluted Equity Component [Domain] Equity Capital Structure [Abstract] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Financial Instruments and Fair Value Disclosures [Abstract] Financial Instruments and Fair Value Disclosures Fair Value Disclosures [Text Block] Accounting for Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Foreign exchange (losses)/ gains Foreign Currency Transaction Gain (Loss), before Tax Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Exchange rate General and administrative expenses General and Administrative Expenses [Abstract] Insurances General Insurance Expense Company administration expenses (including $0, $400,000, and $1,200,000 to related party for the years ended December 31, 2019, 2020 and 2021) Total Less: Unallocated corporate general and administrative expenses General and Administrative Expense General and Administrative Expenses [Member] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Net income/(loss), before taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income Statement Location [Domain] Income Taxes [Abstract] Income Statement Location [Axis] Commitments Under Long-Term Lease Contracts [Abstract] Income and Expenses, Lessor [Abstract] CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME / (LOSS) [Abstract] Income Taxes US source income taxes US Source Income Taxes Accounts receivable trade, net Increase in trade accounts receivable Accounts payable Increase (Decrease) in Accounts Payable Dry-dock costs paid Increase (Decrease) in Deferred Charges Accrued liabilities Increase (Decrease) in Accrued Liabilities Due from/to related parties Increase (Decrease) in Due from Related Parties Deferred revenue Increase in deferred revenue Inventories Increase (Decrease) in Inventories Changes in operating assets and liabilities: Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Shareholders' Equity [Roll Forward] Interest expense Interest on long-term debt - related party (Note 3 (b)) Interest and finance costs, related party Interest and Finance Costs [Abstract] Interest and finance costs (including $162,500, $305,000 and $204,167 to related party for the years ended December 31, 2019, 2020 and 2021, respectively) Total Interest Expense Interest on long-term debt Interest Expense, Debt Interest incurred on long-term debt Other finance charges Financing Costs Cash paid for interest Interest and Finance Costs [Member] Interest Expense [Member] Inventories Inventory, Policy [Policy Text Block] Inventories Inventory, Net Interest income Revenues Related to Time Charter and Pool Contracts Lessor, Leases [Policy Text Block] 2022 Future Minimum Contractual Lease Payments Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table Text Block] Total Lessor, Operating Lease, Payments to be Received Crew & crew related costs Liabilities [Abstract] LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities and Equity [Abstract] Total liabilities and shareholders' equity Liabilities and Equity NON-CURRENT LIABILITIES: Total non-current liabilities Liabilities, Noncurrent Total current liabilities Liabilities, Current CURRENT LIABILITIES: Liabilities, Current [Abstract] Total long-term debt, net of deferred finance costs Long-term Debt Long-Term Debt Long-term Debt [Text Block] Annual Principal Payments [Abstract] 2022 Long-Term Debt, Maturity, Year One Debt Financings [Abstract] Presented [Abstract] Long-term Debt, by Current and Noncurrent [Abstract] 2025 Long-Term Debt, Maturity, Year Four 2026 Long-Term Debt, Maturity, Year Five 2023 Long-Term Debt, Maturity, Year Two 2024 Long-Term Debt, Maturity, Year Three Repairs and Maintenance Fair value of preferred stock Segment Reconciling Items [Member] Measurement Input Type [Axis] Measurement Input Type [Domain] Historical Volatility Measurement Input [Member] Accumulated Depreciation [Abstract] Movement in Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment [Roll Forward] Vessel Cost [Abstract] Movement in Property, Plant and Equipment [Roll Forward] Net cash provided by Financing Activities Net Cash Provided by (Used in) Financing Activities Cash flows provided by Financing Activities: Net Cash provided by/(used in) Operating Activities Net Cash Provided by (Used in) Operating Activities Cash flow used in Investing Activities: Cash Flows provided by/(used in) Operating Activities: Net cash used in Investing Activities Net Cash Provided by (Used in) Investing Activities Net income/(loss) Net income/(loss) Net Income (Loss) Attributable to Parent Net income/(loss) attributable to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Total other expenses, net Nonoperating Income (Expense) Current portion of long-term debt, related party Related party debt Long-term debt from related party, current Number of reportable segments Number of Reportable Segments Over-Allotment Option [Member] Over-Allotment Option [Member] Chief Executive and Chief Financial Officer and directors' compensation Operating Segment [Member] Vessel revenues (net of commissions to charterers of $302,556, $629,015 and $4,417,505 for the years ended December 31, 2019, 2020 and 2021, respectively) Vessel revenues Vessel revenues, net Vessel Operating Expenses [Abstract] Vessel operating expenses Total Vessel operating expenses Operating Costs and Expenses Operating income Operating Income (Loss) Basis of Presentation and General information Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Basis of Presentation and General information [Abstract] Commitments Under Contracts for BWMS Installation [Abstract] Other Commitments [Abstract] Interest and Finance Costs Deferred charges, net Other Assets Disclosure [Text Block] Amortization of other deferred charges Amortization of Other Deferred Charges Fair Value of Acquired Time Charter [Abstract] OTHER INCOME/(EXPENSES): Other Other Cost and Expense, Operating Fair Value of Acquired Time Charter Other Liabilities Disclosure [Text Block] Cumulative dividends on Series A Preferred Shares Less: Cumulative dividends on Series A Preferred Shares Other Preferred Stock Dividends and Adjustments Interest settled in common stock Interest on convertible debt - non cash Payment of deferred financing costs Payments of Financing Costs Common stock issuance expenses Payments of Stock Issuance Costs Redemption of Series A Preferred Shares Payments for Repurchase of Redeemable Preferred Stock Vessel acquisitions (including time charter attached) and other vessel improvements Payments to Acquire Property, Plant, and Equipment Preferred shares, dividend rate Dividend rate Preferred Stock, Dividend Rate, Percentage Liquidation preference per share (in dollars per share) Preferred Shares [Member] Preferred Stock [Member] Deemed dividend on Series A preferred shares Less: Deemed dividend on Series A Preferred Shares Preferred Stock Dividends, Income Statement Impact Gain on extinguishment of Series A Preferred Shares Plus: Gain on extinguishment of preferred shares pursuant to the Series A Preferred Stock Amendment Agreement, net of expenses Preferred Stock Redemption Discount Cumulative dividend in arrears Preferred Stock, Amount of Preferred Dividends in Arrears Preferred shares Preferred Stock, Value, Issued Preferred shares, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred shares, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred shares, shares outstanding (in shares) Preferred shares, issued (in shares) Preferred Stock, Shares Issued Preferred Shares [Abstract] Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Prepaid expenses and other assets Prepaid expenses and other assets, non-current Proceeds from long-term debt and convertible debentures Gross proceeds from issuance of common shares Gross proceeds from issuance of common stock and warrants Gross proceeds from issuance of common stock and warrants Proceeds from related party debt Proceeds from Related Party Debt Property, Plant and Equipment [Line Items] Vessels, net/ Advances for vessel acquisition Property, Plant and Equipment Disclosure [Text Block] Estimated useful life Property, Plant and Equipment, Useful Life Purchase price of acquired vessel Purchase price Acquisitions, improvements, and other vessel costs Vessels, net/ Advances for vessel acquisition [Abstract] Vessels, Net Property, Plant and Equipment [Table Text Block] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Domain] Vessels, net (including $138,600, and $3,406,400 related party commissions for the years ended 2020 and 2021, respectively) Aggregate carrying value Beginning balance Ending balance Transfers from Advances for vessel acquisitions Property, Plant and Equipment, Transfers and Changes Vessels, Net Property, Plant and Equipment, Policy [Policy Text Block] Beginning balance Ending balance Property, Plant and Equipment, Gross Vessel Acquisitions [Abstract] Property, Plant and Equipment, Net [Abstract] Net Book Value [Abstract] Property, Plant and Equipment, Net, by Type [Abstract] Provision for doubtful accounts Provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Purchase Commitment, Excluding Long-term Commitment [Line Items] Contractual purchase obligations Purchase Commitment, Remaining Minimum Amount Committed Purchase Commitment, Excluding Long-term Commitment [Domain] Purchase Commitment, Excluding Long-term Commitment [Table] Purchase Commitment for Ballast Water Management Systems [Member] Purchase Commitment [Member] Purchase Commitment, Excluding Long-term Commitment [Axis] Reconciliation of Assets from Segment to Consolidated [Table] Segment Information [Abstract] Segment Reconciliation [Abstract] Reconciliation of Total Segment Assets to Total Assets Reconciliation of Assets from Segment to Consolidated [Table Text Block] Transactions with Related Parties [Abstract] Related Party Transaction [Line Items] Transactions with Related Parties [Abstract] Management Agreements [Abstract] Related Party Transaction, Due from (to) Related Party, Current [Abstract] Balances with Related Parties [Abstract] Related Party Transaction, Due from (to) Related Party [Abstract] Related Party Transaction [Axis] Related Party [Axis] General and administration expenses, related parties Administration fees-related party (Note 3(c)) Administration expenses, related party Transactions with Related Parties Related Party Transactions Disclosure [Text Block] Related Party Transaction [Domain] Related Party [Domain] Repayment of long-term debt Repayment of loan Repayments of Secured Debt Repayment of related party debt Repayment of loan Restricted cash Restricted cash, non-current Restricted cash, current Restricted Cash Restricted Cash, Current Retained Earnings/ (Accumulated Deficit) [Member] Retained Earnings [Member] Retained Earnings [Member] (Accumulated deficit)/ Retained earnings Retained Earnings (Accumulated Deficit) Vessel Revenues [Abstract] Revenues Related to Voyage Charter Contracts [Abstract] Revenue Related to Voyage Charter Contracts Revenue from Contract with Customer [Policy Text Block] Vessel Revenues REVENUES: Revenues [Abstract] Total revenues Revenues Credit Concentration Considerations [Abstract] Risks and Uncertainties [Abstract] Net proceeds from issuance of common stock and warrants Sale of Stock [Domain] Revenues [Member] Annual Principal Payments Schedule of Maturities of Long-term Debt [Table Text Block] Interest and Finance Costs Schedule of Other Nonoperating Income (Expense) [Table Text Block] Transactions with Related Parties Schedule of Related Party Transactions [Table Text Block] Revenue from Charterers Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Calculation of Basic and Diluted Earnings/(Loss) per Share Long-Term Debt Including Related Party Debt Schedule of Debt [Table Text Block] Schedule of Related Party Transactions, by Related Party [Table] Property, Plant and Equipment [Table] Schedule of Segment Reporting Information, by Segment [Table] Information about Company's Reportable Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Stock by Class [Table] Current portion of long-term debt, net Current portion of long-term debt, net of deferred finance costs Secured Debt, Current Long-term debt, net Non-Current portion of long-term debt, net of deferred finance costs Segments [Domain] Segment Reporting Information [Line Items] Segment Information [Abstract] Segment Reporting Information, Profit (Loss) [Abstract] Segment Information [Abstract] Segment Information Segment Reporting Segment Reporting, Asset Reconciling Item [Line Items] Preferred A Shares [Member] Series A Preferred Shares [Member] Preferred B Shares [Member] Series B Preferred Shares [Member] Balance (in shares) Balance (in shares) Shares, Outstanding Significant Accounting Policies and Recent Accounting Pronouncements CONSOLIDATED BALANCE SHEETS [Abstract] Class of Stock [Axis] Segments [Axis] Statement [Table] Statement [Line Items] CONSOLIDATED STATEMENTS OF CASH FLOWS [Abstract] Equity Components [Axis] CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY [Abstract] Issuance of common stock pursuant to the $5.0 Million Convertible Debentures (Notes 6, 7) (in shares) Shares issued upon conversion of debt (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities Issuance of common stock (in shares) Issuance of common stock (in shares) Number of shares issued in share exchange transaction (in shares) Shares redeemed (in shares) Redemption of Series A Preferred Shares (Note 8) (in shares) Stock Redeemed or Called During Period, Shares Issuance of common stock Stock Issued During Period, Value, New Issues Redemption of Series A Preferred Shares Redemption of Series A Preferred Shares (Note 8) Stock Redeemed or Called During Period, Value Issuance of common stock pursuant to the $5.0 Million Convertible Debentures (Notes 6, 7) Stock Issued During Period, Value, Conversion of Convertible Securities Reverse stock split Balance Balance Total shareholders' equity Stockholders' Equity Attributable to Parent Equity Capital Structure SHAREHOLDERS' EQUITY: Stockholders' Equity Attributable to Parent [Abstract] Equity Capital Structure [Abstract] Stockholders' Equity Note [Abstract] Subsequent Event [Member] Subsequent Event Type [Domain] Subsequent Event [Line Items] Subsequent Event [Line Items] Subsequent Event Type [Axis] Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Events Sale of Stock [Axis] SUPPLEMENTAL CASH FLOW INFORMATION Supplemental Cash Flow Information [Abstract] Tonnage taxes Taxes, Miscellaneous Accounts Receivable Trade, Net Accounts Receivable [Policy Text Block] Use of Estimates Fair value of warrants Term of warrant Warrants and Rights Outstanding, Term Measurement input - Volatility Measurement input Weighted average number of common shares, diluted (in shares) Weighted average number of common shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Plus: Dilutive effect of warrants (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average number of common shares, basic (in shares) Weighted average number of common shares outstanding, basic (in shares) Consolidated Entities [Domain] Consolidated Entities [Axis] Consolidation Items [Domain] Consolidation Items [Axis] Customer [Axis] Maximum [Member] Minimum [Member] Customer [Domain] Product and Service [Domain] Product and Service [Axis] Statistical Measurement [Domain] Statistical Measurement [Axis] Cover [Abstract] Document Type Document Annual Report Document Transition Report Document Shell Company Report Entity Interactive Data Current Document Registration Statement Document Accounting Standard Amendment Flag ICFR Auditor Attestation Flag Document Fiscal Year Focus Document Fiscal Period Focus Document Period End Date Legal Entity [Axis] Entity [Domain] Entity Registrant Name Entity Central Index Key Entity File Number Country of incorporation Entity Incorporation, State or Country Code Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Shell Company Entity Filer Category Entity Emerging Growth Company Entity Ex Transition Period Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact [Member] Contact Personnel Name Contact Personnel Fax Number Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, Country Entity Address, Postal Zip Code Country Region City Area Code Local Phone Number Entity Listings [Table] Entity Listings [Line Items] Title of 12(b) Security Trading Symbol Security Exchange Name Entity Common Stock, Shares Outstanding Auditor Name Auditor Location Auditor Firm ID An oil tanker with a carrying capacity between 80,000 and 120,000 deadweight tonnage (DWT). Aframax [Member] Aframax [Member] A large-sized dry bulk vessel. Capesize Vessel [Member] Capesize [Member] A medium-sized vessel with a carrying capacity between 80,000 and 85,000 deadweight tonnage (DWT). Kamsarmax Vessel [Member] Kamsarmax [Member] The number of vessels in the Company's fleet. Number of vessels Number of vessels Tabular disclosure of information regarding subsidiaries formed to acquire vessels. Subsidiaries Formed to Acquire Vessels [Table Text Block] Subsidiaries Formed to Acquire Vessels Tabular disclosure of information regarding subsidiaries not owning vessels. Non-Vessel Owning Subsidiaries [Table Text Block] Non-Vessel Owning Subsidiaries Tabular disclosure of information regarding subsidiaries owning vessels. Vessel Owning Subsidiaries [Table Text Block] Vessel Owning Subsidiaries Amount of fees paid to an independent registered public accounting firm for professional services rendered for the audit of the consolidated financial statements and any other audit services required for the SEC or other regulatory filings. Audit fees Audit fees Amount of fees paid for services from other professionals, such as lawyers and accountants. Professional Fees, Other Other professional fees A senior secured term loan entered into with Hamburg Commercial Bank AG (the "$40.75 Million Term Loan Facility") on July 23, 2021. Senior Secured Team Loan Facility, Hamburg Commercial Bank AG, July 2021 [Member] $40.75 Million Term Loan Facility [Member] A senior secured term loan entered into with Hamburg Commercial Bank AG (the "$15.29 Million Term Loan Facility") on January 22, 2021. Senior Secured Team Loan Facility, Hamburg Commercial Bank AG, January 2021 [Member] $15.29 Million Term Loan Facility [Member] The amount of retention deposits restricted as to usage. Retention Deposits Retention deposits The carrying amount of the dry-docking reserve account required to be maintained by the borrower under the loan agreement. Dry-docking Reserve Accounts Dry-dock reserve accounts The aggregate amount of non-legally restricted cash required as a minimum liquidity requirement under the debt instruments. Minimum Liquidity Deposits Minimum liquidity deposits A senior secured term loan entered into with Alpha Bank S.A (the "$18.0 Million Term Loan Facility") on April 27, 2021. Senior Secured Team Loan Facility, Alpha Bank S.A., 2021 [Member] $18.0 Million Term Loan Facility [Member] A senior secured term loan entered into with Alpha Bank S.A (the "$11.0 Million Term Loan Facility") on November 22, 2019. Senior Secured Team Loan Facility, Alpha Bank S.A., 2019 [Member] $11.0 Million Term Loan Facility [Member] The amount of non-legally restricted cash per collateralized vessel required as a minimum liquidity requirement under the debt instrument. Minimum Liquidity Deposit Minimum liquidity deposit per vessel Long-term debt of the Company including a senior secured term loan with Alpha Bank S.A ($11.0 million Alpha Bank Financing) and an unsecured term loan with Thalassa Investment Co. ($5.0 million Term Loan Facility). Third Party and Related Party Debt [Member] Long-Term Debt (Including Related Party Debt) [Member] External customer with whom the entity does business. Charterer C [Member] Charterer C [Member] External customer with whom the entity does business. Charterer D [Member] Charterer D [Member] External customer with whom the entity does business. Charterer B [Member] Charterer B [Member] External customer with whom the entity does business. Charterer E [Member] External customer with whom the entity does business. Charterer F [Member] External customer with whom the entity does business. Charterer A [Member] Charterer A [Member] Provides transportation services for oil products. Consists of 2 Handysize tanker vessels. Handysize Tanker Segment [Member] Handysize Tanker Segment [Member] Provides transportation services for crude oil. Consists of 8 vessels, including 7 Aframax/LR2 vessels and 1 Aframax vessel. Aframax/LR2 Tanker Segment [Member] Aframax/LR2 Tanker Segment [Member] Provides dry bulk commodities transportation services. Consists of 20 vessels, including 12 Panamax and 8 Kamsarmax vessels. Dry Bulk Segment [Member] Dry Bulk Segment [Member] A direct offering of warrants issued in the July 2020 Equity Offering pursuant to a placement agency agreement between Maxim Group, LLC and the Company that gives the holder the right to purchase one share of common stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Private Placement Warrants [Member] Private Placement Warrants [Member] Reverse Stock Split [Abstract] Reverse Stock Split [Abstract] 'A registered direct offering of common shares and warrants with certain investors that closed on April 7, 2021, pursuant to which it offered and sold 19,230,770 common shares and warrants to purchase up to 19,230,770 common shares. April 7 Warrants [Member] April 7 Warrants [Member] On April 5, 2021, the Company entered into agreements with certain unaffiliated institutional investors pursuant to which it offered and sold 19,230,770 common shares and warrants to purchase up to 19,230,770 common shares (the "2021 Third Private Placement Warrants") in a registered direct offering or the 2021 Third Registered Direct Equity Offering. Third Registered Direct Equity Offering 2021 [Member] 2021 Third Registered Direct Equity Offering [Member] Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt classified as current. Long-term Debt, Gross, Current Current portion of long-term debt Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt classified as noncurrent. Long-term Debt, Gross, Noncurrent Non-Current portion of long-term debt A registered direct offering of warrants with certain unaffiliated institutional investors that closed on January 5, 2021, pursuant to which it offered and sold 9,475,000 common shares and warrants to purchase 9,475,000 common shares. January 5 Warrants [Member] January 5 Warrants [Member] On December 30, 2020, the Company entered into agreements with certain unaffiliated institutional investors pursuant to which it offered and sold 9,475,000 common shares and warrants to purchase up to 9,475,000 common shares (the "January 5 Warrants") in a registered direct offering or the 2021 First Registered Direct Equity Offering. First Registered Direct Equity Offering 2021 [Member] 2021 First Registered Direct Equity Offering [Member] Tabular disclosure of general and administrative expenses related to company administration. General and Administrative Expenses [Table Text Block] Company Administration Expenses Tabular disclosure of voyage expenses. Voyage Expenses [Table Text Block] Voyage Expenses Tabular disclosure of vessel operating expenses. Vessel Operating Expenses [Table Text Block] Vessel Operating Expenses Revenue generated from pool agreements. Pool Agreements [Member] Pool [Member] A time charter is a contract to charter a vessel for a fixed period at a set daily rate. Time Charter [Member] Time Charter [Member] A voyage charter is a contract to charter a vessel for a fixed amount per ton of cargo carried. Voyage Charter [Member] Voyage Charter [Member] Demurrage income, which is considered a form of variable consideration, represents payments by the charterer to the vessel owner when loading or discharging time exceeds the stipulated time in the voyage charter agreements. Demurrage Income Demurrage income Amount of advances for vessel acquisitions and other vessel pre-delivery costs transfer to Vessels net during the period. Advances Transfer to Vessels, Net Transfer to Vessels, net Amount of advances for vessel acquisitions and other vessel pre-delivery costs Advances for vessel acquisitions and other vessel pre-delivery costs Watercraft used as a means of transportation on water. Vessels [Member] Vessels [Member] The vessels acquired in 2020. Vessel Acquisitions 2020 [Member] 2020 Vessel Acquisitions [Member] The Magic P is a Panamax vessel with a carrying capacity of 76,453 dwt. The Magic Sun is a vessel with a carrying capacity of 75,311 dwt. Magic P and Magic Sun [Member] Magic P and Magic Sun [Member] The Wonder Mimosa is a Handysize vessel with a carrying capacity of 36,660 dwt. The Magic Vela is a Panamax vessel with a carrying capacity of 75,003 dwt. Wonder Mimosa and Magic Vela [Member] Wonder Mimosa and Magic Vela [Member] The number of vessels acquired by the entity during the period. Number of vessels acquired Number of vessels acquired Vessels that were first priority mortgaged as collateral to their loan facilities. Vessels Mortgaged as Collateral [Member] Vessels Mortgaged as Collateral [Member] 12 dry bulk carriers and 8 tanker vessels acquired in 2021. Vessel Acquisitions 2021 [Member] 2021 Vessel Acquisitions [Member] The country in which the vessel was constructed. Vessel, Country of Construction Country of construction The number of vessels first priority mortgaged as collateral to their loan facilities. Number of vessels mortgaged as collateral Number of vessels first priority mortgaged as collateral to loan facilities Date the vessel was delivered to the entity, in YYYY-MM-DD format. Vessel, Delivery Date Delivery date The type of vessel classified on the basis of size. Vessel, Type Vessel type The number of vessels to be acquired by the entity. Number of vessels to be acquired Number of vessels to be acquired Disclosure of accounting policy related to offering costs. Offering Costs [Policy Text Block] Offering Costs Disclosure of accounting policy for insurance claim recoveries from an insurance company when the Company has suffered a loss covered under an insurance policy. Insurance Claims, Policy [Policy Text Block] Insurance Claims 'Disclosure of accounting policy for intangible assets or liabilities related to time charters acquired associated with the acquisition of a vessel. Intangible Assets/Liabilities Related to Time Charters Acquired [Policy Text Block] Intangible Assets/Liabilities Related to Time Charters Acquired Disclosure of accounting policy for convertible debt and associated beneficial conversion features. Convertible debt and associated beneficial conversion features [Policy Text Block] Convertible Debt and Associated Beneficial Conversion Features Disclosure of accounting policy for voyage expenses. Voyage Expenses [Policy Text Block] Voyage Expenses The number of performance obligations when accounting for revenue from voyage charters under the provisions of ASC 606. Revenue from Contract with Customer, Number of Performance Obligations Number of performance obligations Default dividend payment rate multiplier applied to the previous rate payable on the Series A preferred shares prior to the Series A Amended Statements of Designations (SOD). Preferred Stock, Dividend Payment Default Rate Multiplier, Pre-amendment Default dividend payment rate multiplier Fair value of common shares issued in connection with Preferred Stock Settlement Agreement. Common Stock Issued under Settlement Agreement, Fair Value Disclosure Fair value of common shares issued in connection with the Series A Dividends Settlement Agreement Amount of dividends accumulated, due or overdue. Dividends Accumulated, Due or Overdue Accumulated, due or overdue dividends Fixed default dividend payment rate on Series A preferred shares subsequent to the Series A Amended Statements of Designations (SOD). Preferred Stock, Dividend Payment Default Rate Multiplier, Post-amendment Fixed default dividend payment rate multiplier The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed in cash or may be called at. The redemption features of this preferred stock are solely within the control of the issuer. Preferred Stock, Redemption Price Per Share, Cash Redemption price in cash (in dollars per share) Discount rate used to measure the non-recurring fair value of the new Series A Preferred Shares. Preferred Stock, Measurement Input, Discount Rate Discount rate used to measure non-recurring fair value The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed in other than cash or may be called at. The redemption features of this preferred stock are solely within the control of the issuer. Preferred Stock, Redemption Price Per Share, Other than Cash Cashless redemption price (in dollars per share) Number of units issued during the period. Each unit consists of (i) one common share or a pre-funded warrant to purchase one common share at an exercise price equal to $0.01 per common share (a "Pre-Funded Warrant"), and (ii) one Class A Warrant to purchase one common share (a "Class A Warrant"), for $0.35 per unit (or $0.34 per unit including a pre-funded warrant). Units Issued During Period, Shares Issuance of units (in shares) Class A and prefunded warrant that gives the holder the right to purchase shares of stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Class A and Prefunded Warrant [Member] Class A and Prefunded Warrant [Member] The number of units included in a public offering, consisting of (i) one common share or a pre-funded warrant to purchase one common share at an exercise price equal to $0.01 per common share (a "Pre-Funded Warrant"), and (ii) one Class A Warrant to purchase one common share (a "Class A Warrant"), for $0.35 per unit (or $0.34 per unit including a pre-funded warrant), or the June Equity Offering. Public Offering, Number of Units Number of units included in June Equity Offering (in shares) Number of warrants or rights exercised during the period. Class of Warrant or Right, Exercised Warrants exercised (in shares) The number of securities included in the unit offered. Number of Securities Included in Unit Offered Number of securities included in each unit offered (in shares) Number of warrants issued during the period. Class of Warrant or Right, Issued Issuance of warrants (in shares) Prefunded security that gives the holder the right to purchase one share of common stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Prefunded Warrant [Member] Prefunded Warrant [Member] Class A security that gives the holder the right to purchase one share of common stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Class A Warrant [Member] Class A Warrant [Member] External customers with whom the entity does business. Charterers [Member] An Aframax, long range (LR2) tanker built in Korea with a deadweight between 55,000-79,999 metric tonnes. Aframax LR2 Tanker [Member] Aframax LR2 Tanker [Member] A tanker is a ship designed to transport or store liquids or gases in bulk. MR1 [Member] Handysize [Member] A dry bulk carrier with a dead-weight carrying capacity of about 75,000 tons. Panamax Vessel [Member] Panamax Dry Bulk [Member] Percentage of the Company's shares held by another entity. Percentage of shares held Percentage of shares held Basis of Presentation and Organization [Abstract] Basis of Presentation [Abstract] Costs primarily relating to commissions to related party brokers that are unique to a particular charter. Voyage Expenses, Related Party Voyage expenses, related party Address commissions represent discount (sales incentive) on services rendered by the Company and no identifiable benefit is received in exchange for the consideration provided to the charterer. Address Commissions Commissions to charterers The second tranche of a senior secured term loan entered into with Chailease International Financial Services (Singapore) Pte. Ltd. (the "$23.15 Million Term Loan Facility") on November 22, 2021, that was drawn down on November 24, 2021. Senior Secured Team Loan Facility, Chailease International Financial Services (Singapore) Pte. Ltd., Tranche Two [Member] Second Tranche [Member] A senior secured term loan entered into with Chailease International Financial Services (Singapore) Pte. Ltd. (the "$23.15 Million Term Loan Facility") on November 22, 2021. Senior Secured Team Loan Facility, Chailease International Financial Services (Singapore) Pte. Ltd. [Member] $23.15 Million Term Loan Facility [Member] The first tranche of a senior secured term loan entered into with Chailease International Financial Services (Singapore) Pte. Ltd. (the "$23.15 Million Term Loan Facility") on November 22, 2021, that was drawn down on November 24, 2021. Senior Secured Team Loan Facility, Chailease International Financial Services (Singapore) Pte. Ltd., Tranche One [Member] First Tranche [Member] A vessel designed to carry dry cargoes in bulk. Dry Bulk Carrier [Member] Dry Bulk Vessels [Member] Dry Bulk Carriers [Member] A ship designed to transport or store liquids or gases in bulk. Tanker [Member] Tanker Vessels [Member] The number of other vessels in the Company's fleet with a daily fixed fee set from its acquisition date. Number of other vessels with daily fixed fee Number of other vessels with daily fixed fee Under the Management Agreement for this ship-owning subsidiary of the Magic Sun, the Company is provided with a wide range of shipping services such as crew management, technical management, operational employment management, insurance arrangements, provisioning, bunkering, accounting services, general administration and audit support, in exchange for a fixed daily fee. Vessel Management Agreement - Magic Sun [Member] Vessel Management Agreement - Magic Sun [Member] The Company is provided a range of technical, crewing, insurance and operational services for each ship-owning subsidiary in exchange for a fixed daily fee. Technical Shipmanagement Agreements [Member] Technical Management Agreements [Member] Under the Management Agreement for this ship-owning subsidiary of the Magic P, the Company is provided with a wide range of shipping services such as crew management, technical management, operational employment management, insurance arrangements, provisioning, bunkering, accounting services, general administration and audit support, in exchange for a fixed daily fee. Vessel Management Agreement - Magic P [Member] Vessel Management Agreement - Magic P [Member] Under the Management Agreement for this ship-owning subsidiary of the Magic Moon, the Company is provided with a wide range of shipping services such as crew management, technical management, operational employment management, insurance arrangements, provisioning, bunkering, accounting services, general administration and audit support, in exchange for a fixed daily fee. Vessel Management Agreement - Magic Moon [Member] Vessel Management Agreement - Magic Moon [Member] Under the separate Management Agreement for each ship-owning subsidiary, the Company is provided with a wide range of shipping services such as crew management, technical management, operational employment management, insurance arrangements, provisioning, bunkering, accounting services, general administration and audit support, in exchange for a fixed daily fee. Vessel Management Agreements [Member] Vessel Management Agreements [Member] Pavimar has subcontracted to third-party management companies to provide technical and operational management to the respective vessels for a fixed annual fee which is paid by Pavimar at its own expense. Subcontracted Management Agreements [Member] Subcontracted Management Agreements [Member] Working capital advances made to Pavimar and its subcontractor third-party managers for operating expenses paid in advance. Working Capital Advances [Member] Working Capital Advances [Member] Multiplier applied to the total amount of the daily management fee calculated on an annual basis to determine the termination fee under the shipmanagement agreements. Related Party Transaction, Shipmanagement Termination Fee Multiplier Termination fee multiplier Number of vessels under technical management with sub-contracted, third-party ship-management companies. Number of vessels under technical management Number of vessels under technical management Amount of working capital guaranteed deposits paid to the related party. Working Capital Guarantee Deposits Working capital guarantee deposits Pavimar S.A. (Pavimar) is a company controlled by Ismini Panagiotidis, the sister of Petros Panagiotidis, the Company's Chairman, Chief Executive Officer and Chief Financial Officer. Pavimar S.A. [Member] Pavimar [Member] Number of vessels under operational management with sub-contracted, third-party ship-management companies. Number of vessels under operational management Number of vessels under operational management Fixed quarterly fee charged by a related party to provide a shipping related administrative services. Related Party Transaction, Quarterly Management Fee Quarterly management fee Under the Commercial Shipmanagement Agreements, Castor Ships manages overall the Company's business and provides commercial, chartering and administrative services, including, but not limited to, securing employment for the Company's fleet, arranging and supervising the vessels' commercial operations, handling all the Company's vessel sale and purchase transactions, undertaking related shipping project and management advisory and support services, as well as other associated services requested from time to time by the Company and its shipowning subsidiaries. Commercial Shipmanagement Agreements [Member] Commercial Shipmanagement Agreements [Member] On September 1, 2020, the Company and its shipowning subsidiaries entered into a master management agreement (the "Master Agreement") with Castor Ships S.A. ("Castor Ships"), a company ultimately beneficially owned by the Company's Chairman, Chief Executive Officer and Chief Financial Officer. Pursuant to the terms of the Master Agreement each of the Company's shipowning subsidiaries also entered into separate commercial shipmanagement agreements with Castor Ships (the "Commercial Shipmanagement Agreements" and together with the Master Agreement, the "Castor Ships Management Agreements"). Under the terms of the Castor Ships Management Agreements, having all September 1, 2020 as their effective date, Castor Ships manages overall the Company's business and provides commercial, chartering and administrative services, including, but not limited to, securing employment for the Company's fleet, arranging and supervising the vessels' commercial operations, handling all the Company's vessel sale and purchase transactions, undertaking related shipping project and management advisory and support services, as well as other associated services requested from time to time by the Company and its shipowning subsidiaries. Management Agreements [Member] Management Agreements [Member] A commission charged by a related party in connection with each vessel sale and purchase transaction. Related Party Transaction, Commission Rate on Each Vessel Sale and Purchase Transaction Commission rate on each vessel sale and purchase transaction Primary financial statement caption encompassing management fees to related party. Management Fees to Related Party [Member] Management Fees to Related Party [Member] Termination fee multiplier applied to the total amount of the flat management fee and the per vessel management fee calculated on an annual basis under an agreement with a related party. Related Party Transaction, Management Termination Fee Multiplier Termination fee multiplier Term of related party agreement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Related Party Transaction, Renewal Term of Agreement Renewal term of agreement Fixed daily fee charged by a related party to provide a wide range of shipping services such as crew management, technical management, operational employment management, insurance arrangements, provisioning, bunkering, accounting services, general administration and audit support. Related Party Transaction, Fixed Daily Fee Daily fee for services A company ultimately beneficially owned by the Company's Chairman, Chief Executive Officer and Chief Financial Officer. Castor Ships S.A. [Member] Castor Ships [Member] Term of related party agreement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Related Party Transaction, Term of Agreement Term of agreement An unsecured term loan with Thalassa Investment Co. Term Loan Facility [Member] $5.0 Million Term Loan Facility [Member] Term of extension of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Debt Instrument, Term of extension Term of extension An entity registered in the Liberia that is wholly-owned and controlled by Petros Panagiotidis, the Company's Chairman, Chief Executive Officer and Chief Financial Officer. Thalassa Investment Co. S.A. [Member] Thalassa [Member] The aggregate amount of beneficial conversion features ("BCF"). Beneficial Conversion Features, Amount Aggregate amount of BCF Number of convertible debentures issued and sold by the Company to an investor under a securities purchase agreement. Number of convertible debentures issued and sold Number of unsecured convertible debentures issued and sold The number of periodic payment installments in which the debt is to be repaid. Debt Instrument, Number of Payment Installments Number of payment installments A senior secured term loan entered into with Chailease International Financial Services Co., Ltd (the "$4.5 Million Term Loan Facility") on January 23, 2020. Senior Secured Team Loan Facility, Chailease International International Financial Services Co., Ltd. [Member] $4.5 Million Term Loan Facility [Member] The entire disclosure for general and administrative expenses. General and Administrative Expenses [Text Block] General and Administrative Expenses Amount of operating expense for lubricants. Lubricant Expenses Lubricants Fixed charges, such as wharfage, towage, and pilotage, levied against a ship or its cargo in port and other expenses. Port and Other Expenses Port & other expenses Commissions paid to brokers for time-charter and voyage-charter arrangements. Brokerage commissions Brokerage commissions Amount of bunkers (or energy) consumption related to fuel stored on a ship and used as fuel for machinery operation. Bunkers consumption Commissions paid to related party for time-charter and voyage-charter arrangements. Brokerage Commissions, Related Party Brokerage commissions- related party The amount of loss (gain) on bunker fuel during the period. The gain or loss is the difference between the cost of bunker fuel delivered by the terminating charterer and the bunker fuel sold to the new charterer. Loss (Gain) on Bunker Fuel Loss/(Gain) on bunkers Voyage Expense [Abstract] Voyage Expenses [Abstract] Amount of operating expenses for vessel repair and maintenance, spares, stores, classification, chemicals and gases, paints and victualling. Vessel Repair and Maintenance Expenses Repairs & maintenance, spares, stores, classification, chemicals & gases, paints, victualling The maximum number of capital shares, including preferred and common stock, permitted to be issued by an entity's charter and bylaws. Capital Stock, Shares Authorized Capital shares, shares authorized (in shares) Face amount or stated value per share of capital shares, including preferred and common stock. Capital Stock, Par or Stated Value Per Share Capital shares, par value (in dollars per share) Trailing period to maintain earnings before interest, taxes, depreciation, and amortization (EBITDA) to net interest expense ratio above a certain level in the debt agreement, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Debt Instrument, Trailing period to maintain EBITDA to net interest expense ratio Trailing period to maintain EBITDA to net interest expense ratio A Japanese-built Panamax dry bulk carrier. Magic Callisto [Member] Senior secured term loan facility entered into with Deutsche Bank AG on January 12, 2022. Senior Secured Team Loan Facility, Deutsche Bank AG [Member] $55.0 Million Deutsche Bank Facility [Member] Number of the Company's ship-owning subsidiaries that entered into a senior secured term loan facility. Number of ship-owning subsidiaries entering into term loan facility Number of ship-owning subsidiaries entering into term loan facility The number of tranches in which the debt instrument was drawn down. Debt Instrument, Number of Tranches Number of tranches drawn Percentage increase (decrease) in the volatility percentage applied to the valuation of warrants. Percentage Increase (Decrease) in Volatility Percentage increase in volatility causing increase in fair value of warrants Percentage increase (decrease) in the fair value of warrants due to an increase (decrease) in the volatility applied to the valuation of warrants. Percentage Increase (Decrease) in Fair Value of Warrants Percentage increase in fair value of warrants due to increase in volatility A registered direct offering of warrants with certain investors that closed on January 12, 2021, pursuant to which it offered 13,700,000 common shares and warrants to purchase 13,700,000 common shares. January 12 Warrants [Member] January 12 Warrants [Member] On January 8, 2021, the Company entered into agreements with certain unaffiliated institutional investors pursuant to which it offered and sold 13,700,000 common shares and warrants to purchase up to 13,700,000 common shares (the "January 7 Warrants") in a registered direct offering or the 2021 Second Registered Direct Equity Offering. Second Registered Direct Equity Offering 2021 [Member] 2021 Second Registered Direct Equity Offering [Member] Amount of commission charged by related party for any sale or purchase of vessels for the Company. Related Party Transaction, Sale and Purchase Commission Vessels, net, related party commissions Sale & purchase commission Amount of interest payable on debt due to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Accrued Interest, Related Parties, Current Accrued loan interest Accrued interest to related party Advance amount related to vessel acquisitions. Advances for vessel acquisitions Opening Balance Closing Balance Commercial services provided to the Company on a non-recurring basis. Commercial Services [Member] Commercial Services [Member] Commissions paid to a related party broker on time-charter and voyage-charter arrangements. Related Party Transaction, Commissions Charter hire commissions Charter hire commissions The percentage of the gross charter hire, freight and the ballast bonus earned under a charter charged as a commission to the Company by a related party. Related Party Transaction, Commission Rate Commission rate Commission rate on charter agreements Primary financial statement caption encompassing voyage expenses. Voyage Expenses [Member] Voyage Expenses [Member] An entity controlled by a family member of the Company's Chief Executive and Chief Financial Officer. Alexandria Enterprises S.A. [Member] Alexandria [Member] Vessel with a carrying capacity of 115,341 dwt. Wonder Bellatrix [Member] M/T Wonder Bellatrix [Member] Wonder Bellatrix [Member] Vessel with a carrying capacity of 76,636 dwt. Magic Phoenix [Member] M/V Magic Phoenix [Member] Magic Phoenix [Member] A secondhand 2013 Japanese-built Kamsarmax dry bulk carrier. Magic Perseus [Member] M/V Magic Perseus [Member] Magic Perseus [Member] A secondhand 2013 Japanese-built Panamax dry bulk carrier. Magic Pluto [Member] M/V Magic Pluto [Member] Magic Pluto [Member] Vessel with a carrying capacity of 76,822 dwt. Magic Mars [Member] M/V Magic Mars [Member] Magic Mars [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Drax Shipping Co [Member] Drax Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Garfield Shipping Co [Member] Garfield Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Johnny Bravo Shipping Co [Member] Johnny Bravo Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Asterix Shipping Co [Member] Asterix Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Songoku Shipping Co [Member] Songoku Shipping Co. [Member] A secondhand 2010 Japanese-built Kamsarmax dry bulk carrier. Magic Venus [Member] M/V Magic Venus [Member] Magic Venus [Member] Vessel with a carrying capacity of 115,341 dwt. Wonder Sirius [Member] M/T Wonder Sirius [Member] Wonder Sirius [Member] Vessel with a carrying capacity of 80,283 dwt. Magic Twilight [Member] M/V Magic Twilight [Member] Magic Twilight [Member] Vessel with a carrying capacity of 115,341 dwt. Wonder Polaris [Member] M/T Wonder Polaris [Member] Wonder Polaris [Member] Vessel with a carrying capacity of 106,162 dwt. Wonder Avior [Member] M/T Wonder Avior [Member] Wonder Avior [Member] Vessel with a carrying capacity of 106,149 dwt. Wonder Arcturus [Member] M/T Wonder Arcturus [Member] Wonder Arcturus [Member] A secondhand 2009 Japanese-built Kamsarmax dry bulk carrier. Magic Argo [Member] M/V Magic Argo [Member] Magic Argo [Member] Vessel with a carrying capacity of 106209 dwt. Wonder Musica [Member] M/T Wonder Musica [Member] Wonder Musica [Member] Vessel with a carrying capacity of 37,620 dwt. Wonder Mimosa [Member] M/T Wonder Mimosa [Member] Wonder Mimosa [Member] Vessel with a carrying capacity of 74,940 dwt. Magic Eclipse [Member] M/V Magic Eclipse [Member] Magic Eclipse [Member] Vessel with a carrying capacity of 37,562 dwt. Wonder Formosa [Member] M/T Wonder Formosa [Member] Wonder Formosa [Member] Vessel with a carrying capacity of 81,048 dwt. Magic Starlight [Member] M/V Magic Starlight [Member] Magic Starlight [Member] Vessel with a carrying capacity of 75,003 dwt. Magic Vela [Member] M/V Magic Vela [Member] Magic Vela [Member] Vessel with a carrying capacity of 83,375 dwt. Magic Thunder [Member] M/V Magic Thunder [Member] Magic Thunder [Member] A secondhand 2006 Japanese-built Capesize dry bulk carrier. Magic Orion [Member] M/V Magic Orion [Member] Magic Orion [Member] Vessel with a carrying capacity of 80,281 dwt. Magic Nebula [Member] M/V Magic Nebula [Member] Magic Nebula [Member] Vessel with a carrying capacity of 106,062 dwt. Wonder Vega [Member] M/T Wonder Vega [Member] Wonder Vega [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Snoopy Shipping Co. [Member] Snoopy Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Gamora Shipping Co. [Member] Gamora Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Cinderella Shipping Co. [Member] Cinderella Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Super Mario Shipping Co. [Member] Super Mario Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Mulan Shipping Co. [Member] Mulan Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Stewie Shipping Co. [Member] Stewie Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Rocket Shipping Co. [Member] Rocket Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Vision Shipping Co. [Member] Vision Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Luffy Shipping Co. [Member] Luffy Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Colossus Shipping Co. [Member] Colossus Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Liono Shipping Co. [Member] Liono Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Pumba Shipping Co. [Member] Pumba Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Kabamaru Shipping Co. [Member] Kabamaru Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Xavier Shipping Co. [Member] Xavier Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. This entity serves as the Company's vessel owning subsidiaries' cash manager with effect from November 1, 2021. Castor Maritime SCR Corp. [Member] Castor Maritime SCR Corp. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Mickey Shipping Co. [Member] Mickey Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Hawkeye Shipping Co. [Member] Hawkeye Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Elektra Shipping Co. [Member] Elektra Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Starlord Shipping Co. [Member] Starlord Shipping Co. [Member] The year in which the vessel was built. Vessel, Year Built Year built The month and year (YYYY-MM) the vessel was delivered to the entity. Vessel, Delivery Date, Month and Year Delivery date to Castor Deadweight tonnage (DWT) is a measure of vessels capacity in weight, and does not include the weight of the vessel. Vessel, Dead Weight Tonnage DWT Combined carrying capacity The name of vessel. Vessel, Name Vessel name Subsidiaries in Consolidation [Abstract] Subsidiaries in Consolidation [Abstract] Panamax vessel with a carrying capacity of 76,453 dwt. Magic P [Member] M/V Magic P [Member] Vessel with a carrying capacity of 75,311 dwt. Magic Sun [Member] M/V Magic Sun [Member] Vessel with a carrying capacity of 78,833 dwt. Magic Nova [Member] M/V Magic Nova [Member] Magic Nova [Member] Vessel with a carrying capacity of 76,602 dwt. Magic Moon [Member] M/V Magic Moon [Member] Magic Moon [Member] Vessel with a carrying capacity of 73,593 dwt. Magic Rainbow [Member] M/V Magic Rainbow [Member] Magic Rainbow [Member] Vessel with a carrying capacity of 76,619 dwt. Magic Horizon [Member] M/V Magic Horizon [Member] Magic Horizon [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Spetses Shipping Co [Member] Spetses Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Bagheera Shipping Co. [Member] Bagheera Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Pikachu Shipping Co. [Member] Pikachu Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Pocahontas Shipping Co. [Member] Pocahontas Shipping Co. [Member] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Jumaru Shipping Co. [Member] Jumaru Shipping Co. [Member] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Organization [Line Items] Wholly-owned subsidiary of the Company, incorporated in the Marshall Islands. Bistro Maritime Co. [Member] Bistro Maritime Co. [Member] Disclosure of information on the organization. Organization [Table] An interest free unsecured bridge loan, which was provided to the Company by Thalassa Investment Co. S.A, a company controlled by Petros Panagiotidis, who is also the Company's Chairman, Chief Executive Officer and Chief Financial Officer. Bridge Loan $7.5 Million [Member] $7.5 Million Bridge Loan [Member] Three unsecured convertible debentures issued and sold to an institutional investor under a securities purchase agreement (collectively, the $5.0 Million Convertible Debentures). Convertible Debentures [Member] $5.0 Million Convertible Debentures [Member] The value of common stock that can be issued and sold from time to time under an at-the-market (ATM) continuous equity offering program. Common Stock that Can be Sold, Value Common stock that can be sold under ATM Number of new stock issued during the period pursuant to an at-the-market offering. Stock Issued During Period, Shares, New Issues, At-the-Market Offering Issuance of common stock pursuant to the Second ATM Program (Note 8) (in shares) Equity impact of the value of new stock issued during the period pursuant to an at-the-market offering. Stock Issued During Period, Value, New Issues, At-the-Market Offering Issuance of common stock pursuant to the Second ATM Program (Note 8) Equity impact of the value of new stock issued during the period pursuant to registered direct offerings. Stock Issued During Period, Value, New Issues, Registered Direct Offerings Issuance of common stock pursuant to the registered direct offerings (Note 8) Number of new stock issued during the period pursuant to registered direct offerings. Stock Issued During Period, Shares, New Issues, Registered Direct Offerings Issuance of common stock pursuant to the registered direct offerings (Note 8) (in shares) Capital stock, including shares designated as common shares and preferred shares. Par Value of Shares Issued [Member] Par Value of Shares Issued [Member] Number of common shares issued related to preferred share dividends. Stock Issued During Period, Shares, Preferred Share Dividends Issuance of common stock related to Series A Preferred Stock dividends (Note 8) (in shares) Equity impact of the value of common shares issued related to preferred share dividends. Stock Issued During Period, Value, Preferred Share Dividends Issuance of common stock related to Series A Preferred Stock dividends (Note 8) Amount of increase (decrease) to additional paid in capital (APIC) resulting from the gain (loss) on the extinguishment of preferred stock pursuant to preferred shares amendment agreement, net of expenses. Adjustments to Additional Paid in Capital, Gain (Loss) on Extinguishment of Preferred Shares Gain on extinguishment of preferred stock pursuant to the Series A Preferred Stock Amendment Agreement, net of expenses (Note 8) Number of new stock issued pursuant to the exercise of warrants during the period. Stock Issued During Period, Shares, Exercise of Warrants Issuance of common stock pursuant to warrants exercises (Note 8) (in shares) The equity impact of waiving the preferred stock dividend. Stock Dividend Waived Series A Preferred Stock dividend waived (Note 8) Series A Preferred Shares dividend waived Amount of increase (decrease) to additional paid in capital (APIC) resulting from the preferred stock dividend waived that was accounted for as a deemed contribution. Adjustments to Additional Paid in Capital, Dividend Waived Series A Preferred Stock dividend waived accounted as deemed contribution (Note 8) Equity impact of the value of new stock issued pursuant to the exercise of warrants during the period. Stock Issued During Period, Value, Exercise of Warrants Issuance of common stock pursuant to the exercise of Warrants (Note 8) Amount of decrease (increase) to additional paid in capital (APIC) resulting from deemed dividend pursuant to preferred stock amendment agreement . Adjustments to Additional Paid in Capital, Deemed Dividend Pursuant to Stock Amendment Agreement Preferred shareholders' deemed dividend pursuant to the Series A Preferred Stock Amendment Agreement (Note 8) Amount of increase (decrease) to additional paid in capital (APIC) resulting from deemed contribution made by shareholders pursuant to bridge loan. Adjustments to Additional Paid in Capital, Deemed Contribution Pursuant to Loan Shareholder's deemed contribution pursuant to the $7.5 million Bridge Loan On July 15, 2020, the Company completed a registered direct offering with certain unaffiliated institutional investors pursuant to which it issued and sold an aggregate of 57,750,000 of its common shares at an offering price of $0.30 per common share, while, in a concurrent private placement the Company issued and sold warrants to purchase up to 57,750,000 of its common shares at an exercise price of $0.35 per common share (the "July Equity Offering"). Equity Offering, July 2020 [Member] 2020 July Equity Offering [Member] On June 23, 2020, the Company entered into an agreement with Maxim Group LLC, or Maxim, acting as underwriter pursuant to which it offered and sold 59,110,000 units, each unit consisting of (i) one common share or a pre-funded warrant to purchase one common share at an exercise price equal to $0.01 per common share (a "Pre-Funded Warrant"), and (ii) one Class A Warrant to purchase one common share (a "Class A Warrant"), for $0.35 per unit (or $0.34 per unit including a pre-funded warrant), or the June Equity Offering. Equity Offering, June 2020 [Member] 2020 June Equity Offering [Member] Preferred Share Purchase Rights under Stockholders Rights Agreement. Preferred Share Purchase Rights under Stockholders Rights Agreement [Member] Preferred Share Purchase Rights under Stockholders Rights Agreement [Member] The amount of unpaid advances for vessel acquisitions. Unpaid Advances For Vessel Acquisitions Unpaid advances for vessel acquisitions (included in Accounts payable and Accrued Liabilities) Future cash outflow to pay for costs incurred directly with the issuance of an equity security. Stock Issuance Costs Incurred but Not yet Paid Unpaid capital raising costs (included in Accounts payable and Accrued Liabilities) The amount of cash outflows associated with advance amount for vessel acquisitions. Payments of Advances for Vessel Acquisitions Advances for vessel acquisition The increase (decrease) during the reporting period in the value of other expenditures made during the current reporting period for benefits that will be received over a period of years. Deferred charges differ from prepaid expenses in that they usually extend over a long period of time and may or may not be regularly recurring costs of operation. Increase (Decrease ) in Other Deferred Charges Other deferred charges Value of common stock issued in connection with preferred shares settlement agreement. Issuance of Common Stock in Connection with Preferred Shares Settlement Agreement Shares issued in connection with the Series A Preferred Shares Settlement Agreement The amount of unpaid deferred financing costs. Unpaid Deferred Financing Costs Unpaid deferred financing costs Value of deemed contribution made by shareholders pursuant to $7.5 million bridge loan. Deemed Contribution Pursuant to Bridge Loan Shareholder's deemed contribution pursuant to the $7.5 Million Bridge Loan Dividend waived that was accounted for as a deemed contribution. Dividend waived Series A Preferred Stock dividend waived accounted as deemed contribution The amount of unpaid deferred dry-dock costs. Unpaid Deferred Dry-dock Costs Unpaid deferred dry-dock costs (included in Accounts payable and Accrued liabilities) Value of deemed contribution made by preferred shareholders pursuant to the Preferred Shares Amendment Agreement, net of expenses. Deemed Contribution Pursuant to Preferred Shares Amendment Agreement, Net of Expenses Preferred shareholders' deemed contribution pursuant to the Series A Preferred Stock Amendment Agreement, net of expenses Amount of amortization expense attributable to debt issuance costs and write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. Amortization and Write off of Deferred Debt Issuance Costs Amortization and write-off of deferred finance charges The amount of shareholders' deemed interest contribution. Shareholders Deemed Interest Contribution Shareholders' deemed interest contribution The aggregate amount of vessels' depreciation and amortization of deferred dry-docking costs. Depreciation and Amortization of Deferred Dry-Docking Costs Depreciation and amortization The amount of amortization and write-off of beneficial conversion feature resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. Amortization and Write-off of Convertible Notes Beneficial Conversion Feature Amortization and write-off of convertible notes beneficial conversion feature Amortization and write-off of convertible notes beneficial conversion features The entire disclosure for vessel operating expenses and voyage expenses. Vessel Operating and Voyage Expenses [Text Block] Vessel Operating and Voyage Expenses Vessel Operating and Voyage Expenses [Abstract] Number of votes each outstanding preferred share is entitled to vote per share owned on all matters submitted to a vote of shareholders. Preferred Stock, Voting Rights, Number of Votes Number of votes per share The number of common shares each preferred share has in voting power. Preferred Stock, Voting power in number of common shares Voting power of each preferred share in number of common shares (in shares) Amount of additions to asset recognized from cost incurred to obtain or fulfill contract with customer. Capitalized Contract Cost, Additions Additions The number of additional vessels completing their scheduled dry-dock. Number of Additional Vessels Completing Scheduled Dry-Dock Number of additional vessels completing scheduled dry-dock Number of votes each outstanding common share is entitled to vote per share owned on all matters submitted to a vote of shareholders. Common Stock, Voting Rights, Number of Votes Number of votes per share The period of time that the Company can sell shares from under an at-the-market (ATM) continuous equity offering program in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Common Stock that Can be Sold, Term Term common stock can be sold under ATM Amount of costs incurred by the company in connection with the company's registration and listing of its issued and outstanding common shares, including legal, consultancy and other costs incurred in connection with the listings. Public Registration Costs Public registration costs Public registration costs Voyage expenses consist of: (a) port, canal and bunker expenses that are unique to a particular charter which are paid for by the charterer under the time charter arrangements or by the Company under voyage charter arrangements, and (b) brokerage commissions, which are always paid for by the Company, regardless of charter type. Voyage Expenses Voyage expenses (including $40,471, $29,769 and $1,671,145 to related parties for the years ended December 31, 2019, 2020 and 2021, respectively) Total Voyage expenses Voyage expenses (including charges from related parties) Fees paid to related parties for providing a wide range of shipping services such as crew management, technical management, operational employment management, insurance arrangements, provisioning, bunkering, accounting services, general administration and audit support. Related Party Transaction, Management Fees Management fees to related parties Management fees Management fees to related party