Award Date [Axis]
Award Date [Domain]
Award Type [Axis]
Significant Accounting Policies and Recent Accounting Pronouncements [Abstract]
Accounts payable, trade and other
Accounts Payable, Current
Accounts receivable, net of provision for credit losses (Note 4)
Accounts receivable, net
Receivable Type [Axis]
Provision for Credit Losses [Abstract]
Accounts and Financing Receivable, after Allowance for Credit Loss, Current [Abstract]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued liabilities
Accrued Liabilities, Current
Other comprehensive income
Accumulated Other Comprehensive Income (Loss), Net of Tax
Other Comprehensive Income [Member]
Ending balance
Beginning balance
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Additional paid-in capital (Note 9)
Additional Paid in Capital
Additional Paid-in Capital [Member]
Adjustments to reconcile net income/(loss) to net cash provided by / (used in) operating activities:
Share-based compensation expense
Allowance for estimated credit losses
Amortization of deferred financing costs
Amortization of Debt Issuance Costs
Antidilutive Securities [Axis]
Earnings / (Loss) per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted loss per share (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Antidilutive Securities, Name [Domain]
Total assets
Assets
ASSETS
Assets [Abstract]
Total non-current assets
Assets, Noncurrent, Other than Noncurrent Investments and Property, Plant and Equipment
Carrying Amounts of Major Classes of Assets of Discontinued Operations [Abstract]
Total major classes of current assets of discontinued operations
Current assets from discontinued operations (Note 3)
Disposal Group, Including Discontinued Operation, Assets, Current
Total current assets
Assets, Current
CURRENT ASSETS:
NON-CURRENT ASSETS:
Financial Statements Presentation
Basis of Accounting, Policy [Policy Text Block]
Non-cash investing activities
Capital Expenditures Incurred but Not yet Paid
Deferred charges, net
Capitalized Contract Cost, Net, Noncurrent
Deferred voyage expenses
Capitalized Contract Cost, Net, Current
Net increase / (decrease) 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 end of the period
Cash, cash equivalents and restricted cash at beginning of the year
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations
Cash and Cash Equivalents [Axis]
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents at the end of the period
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Cash Equivalents [Member]
Class of Treasury Stock [Table]
Class of Stock [Line Items]
Class of Stock [Domain]
Preferred Stock [Abstract]
Share Repurchase Program [Abstract]
Class of Stock Disclosures [Abstract]
Commitments and Contingencies [Abstract]
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Commitments and contingencies (Note 8)
Commitments and Contingencies
At The Market Offering [Abstract]
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common Stock [Member]
Common stock, shares issued (in shares)
Common Stock, Shares, Issued
Common shares, par value (in dollars per share)
Common stock, par value (in dollars per share)
Common stock, $0.01 par value; 500,000,000 shares authorized; 5,082,726 issued and outstanding as at June 30, 2021 and December 31, 2020, respectively (Note 9)
Common Stock, Value, Issued
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Common stock, shares outstanding (in shares)
Common Stock, Shares, Outstanding
Compensating cash balance required under loan agreements
Compensating Balance, Amount
Stock Options Accounting
Compensation Related Costs, Policy [Policy Text Block]
Comprehensive income / (loss) from continuing and discontinued operations
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
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]
Contract assets
Contract with Customer, Asset, after Allowance for Credit Loss, Current
Number of shares issued conversion of Series B preferred stock to common stock (in shares)
Conversion of Stock, Shares Issued
Conversion of Series B preferred stock to common stock (in shares)
Conversion of Stock, Shares Converted
Series B-2 Convertible Preferred Stock [Member]
Convertible Preferred Stock [Member]
EXPENSES:
Customer Concentration Risk [Member]
Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table]
Significant Accounting Policies [Abstract]
Revenues and Accounts Receivable [Abstract]
Disaggregation of Revenue [Abstract]
Fixed margin rate
Debt Instrument, Basis Spread on Variable Rate
Net book value of tanker vessels used as collateral
Debt Instrument, Collateral Amount
Long-Term Debt [Abstract]
Debt Instrument [Axis]
Total principal repayments
Long-term debt
Long-term Debt, Gross
Schedule of Long-term Debt Instruments [Table]
Debt Instrument [Line Items]
Commitment fees
Debt Related Commitment Fees and Debt Issuance Costs
Long-Term Debt [Abstract]
Debt Instruments [Abstract]
Amount available for drawdown
Debt Instrument, Unused Borrowing Capacity, Amount
Debt Instrument, Name [Domain]
Less non-current portion of unamortized deferred finance costs
Debt Issuance Costs, Noncurrent, Net
Less current portion of unamortized deferred finance costs
Debt Issuance Costs, Current, Net
Less unamortized deferred financing costs
Debt Issuance Costs, Net
Depreciation
Depreciation (Note 6)
Depreciation and amortization of deferred charges
Depreciation and Amortization, Discontinued Operations
Depreciation and amortization of deferred charges (Notes 3 and 6)
Depreciation, Depletion and Amortization
Earnings per common share, basic, discontinued operations (Note 10) (in dollars per share)
Earnings / (Loss) per common share, discontinued operations (in dollars per share)
Earnings per common share, diluted, discontinued operations (Note 10) (in dollars per share)
Earnings / (Loss) per common share, discontinued operations (in dollars per share)
Discontinued Operations [Abstract]
Loss on vessels' sale
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax
Discontinued Operations
Discontinued Operations, Policy [Policy Text Block]
Accrued liabilities
Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current
Disposal Group Classification [Axis]
Accounts payable, trade and other
Disposal Group, Including Discontinued Operation, Accounts Payable, Current
Other income
Disposal Group Classification [Domain]
Prepaid expenses and other assets
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current
Time-charter revenues
Cash and cash equivalents
Accounts receivable, trade
Foreign currency gains
Vessels' operating expenses
Disposal Group, Including Discontinued Operation, Operating Expense
Discontinued Operations
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Disposal Group Name [Domain]
Items Constituting Net Income from Discontinued Operations [Abstract]
Dividends paid
Due to related parties (Note 5)
Payable to related parties
Earnings / (Loss) per Share
Earnings/(Loss) per Share [Abstract]
Earnings Per Share, Basic and Diluted [Abstract]
Earnings / (Loss) per common share, basic, total (Note 10) (in dollars per share)
Earnings / (Loss) per common share, total (in dollars per share)
Earnings / (Loss) per Share [Abstract]
Earnings / (Loss) per common share, diluted, total (Note 10) (in dollars per share)
Earnings / (Loss) per common share, total (in dollars per share)
Weighted-average period to recognize compensation cost of non-vested awards
Stock Options [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Unrecognized compensation cost
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount
Equity Component [Domain]
Equity, Class of Treasury Stock [Line Items]
Fair Value Hierarchy and NAV [Axis]
Financial Instruments and Fair Value Disclosures [Abstract]
Measurement Frequency [Axis]
Fair Value Hierarchy and NAV [Domain]
Non-Recurring Basis [Member]
Measurement Frequency [Domain]
Level 3 [Member]
Financial Instruments and Fair Value Disclosures
Financial Instruments Disclosure [Text Block]
Exchange rate
Foreign Currency Exchange Rate, Translation
Grantee Status [Domain]
Grantee Status [Axis]
Gain / (loss) on vessel's sale
Gain (Loss) on Disposition of Assets
General and administrative expenses (Notes 5 and 9)
General and Administrative Expenses [Member]
General and Administrative Expense [Member]
Impairment losses
Impairment of Long-Lived Assets to be Disposed of
Income Statement Location [Domain]
Income Statement Location [Axis]
Earnings / (Loss) per common share, diluted, continuing operations (Note 10) (in dollars per share)
Earnings / (Loss) per common share, continuing operations (in dollars per share)
Net income from discontinued operations
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Earnings / (Loss) per common share, basic, continuing operations (Note 10) (in dollars per share)
Earnings / (Loss) per common share, continuing operations (in dollars per share)
Net income / (loss) from continuing operations
Net income / (loss) from continuing operations
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Disposal Groups, Including Discontinued Operations [Table]
Unaudited Interim Consolidated Statements of Operations [Abstract]
Disposal Group Name [Axis]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income from discontinued operations (Note 3)
Deferred voyage expenses
Increase (Decrease) in Contract with Customer, Asset
Lease liabilities under operating leases
Increase (Decrease) in Operating Lease Liability
Other liabilities, non current
Increase (Decrease) in Other Noncurrent Liabilities
Accounts receivable
Increase (Decrease) in Accounts Receivable
Accounts payable, trade and other
Increase (Decrease) in Accounts Payable
Accrued liabilities
Increase (Decrease) in Accrued Liabilities
Due to related parties
Increase (Decrease) in Due to Related Parties
Increase / (Decrease) in:
Increase (Decrease) in Operating Liabilities [Abstract]
Inventories
Increase (Decrease) in Inventories
(Increase) / Decrease in:
Increase (Decrease) in Operating Assets [Abstract]
Prepaid expenses and other assets
Increase (Decrease) in Prepaid Expense and Other Assets
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Effect of dilutive shares (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock
Interest and finance costs
Interest Expense
Interest expense on long-term debt
Interest Expense, Debt
Interest payments, net of amounts capitalized
Inventories
Inventory, Net
Interest income
LIBOR [Member]
Minimum contractual annual charter revenues, net of related commissions to third parties, to be generated until June 30, 2022
Lessor, Operating Lease, Payments to be Received, Next Rolling Twelve Months
Accounting for Rent Concessions Related to the COVID-19 Pandemic
Lessee, Leases [Policy Text Block]
Year 1
Total
Lessee, Operating Lease, Liability, to be Paid
Less imputed interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Term of leases
Lessee, Operating Lease, Term of Contract
Year 3
Office Rental Obligations
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Year 2
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Line Items]
Office Leases [Abstract]
Lessee, Operating Lease, Description [Abstract]
LIABILITIES AND STOCKHOLDERS' EQUITY
Carrying Amounts of Major Classes of Liabilities of Discontinued Operations [Abstract]
Total liabilities and stockholders' equity
Liabilities and Equity
Current liabilities from discontinued operations (Note 3)
Total major classes of current liabilities of discontinued operations
Disposal Group, Including Discontinued Operation, Liabilities, Current
LONG-TERM LIABILITIES:
Total long-term liabilities
Liabilities, Noncurrent
Total current liabilities
Liabilities, Current
CURRENT LIABILITIES:
Weighted average interest rate
Long-term Debt, Weighted Average Interest Rate, over Time
Total debt, net of deferred financing costs
Long-term Debt
Long-Term Debt
Long-term Debt [Text Block]
Principal Repayments [Abstract]
July 1, 2021 through June 30, 2022
Long-Term Debt, Maturity, Year One
Current [Abstract]
Long-term Debt, Current Maturities [Abstract]
Non-current [Abstract]
Long-term Debt, Excluding Current Maturities [Abstract]
July 1, 2024 through December 31, 2024
Long-Term Debt, Maturity, Year Four
July 1, 2022 through June 30, 2023
Long-Term Debt, Maturity, Year Two
July 1, 2023 through June 30, 2024
Long-Term Debt, Maturity, Year Three
Accumulated Depreciation [Abstract]
Vessels' Cost [Abstract]
Net income from discontinued operations
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic
Diluted Earnings / (Loss) per Share [Abstract]
Net Income (Loss) Available to Common Stockholders, Operations, Diluted [Abstract]
Basic Earnings / (Loss) per Share [Abstract]
Net Income (Loss) Available to Common Stockholders, Operations, Basic [Abstract]
Net income /(loss) available to common stockholders from continuing operations
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic
Net income / (loss) available to common stockholders from continuing operations
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted
Net income from discontinued operations
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Diluted
Net Cash provided by / (used in) Financing Activities
Net Cash Provided by (Used in) Financing Activities
Cash Flows provided by / (used in) Financing Activities:
Net Cash provided by / (used in) Operating Activities
Net Cash Provided by (Used in) Operating Activities
Cash Flows used in Investing Activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
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) from continuing and discontinued operations
Net income /(loss)
Net income (loss)
Total net income / (loss) available to common stockholders
Net Income (Loss) Available to Common Stockholders, Diluted
Total net income / (loss) available to common stockholders
Net Income (Loss) Available to Common Stockholders, Basic
Recent Accounting Pronouncements- Not Yet Adopted
New Accounting Pronouncements, Policy [Policy Text Block]
Total other income / (expenses), net
Nonoperating Gains (Losses)
Number of reportable segments
Number of Reportable Segments
Lease liabilities, current (Note 8)
Lease liabilities, current
Long-term lease liabilities (Note 8)
Lease liabilities, non- current
Office Rental Obligations [Abstract]
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Operating right-of-use asset
Right of use asset under operating leases (Note 8)
Impairment charge
Operating Lease, Impairment Loss
Rent expense
Operating Lease, Cost
Operating lease liability
Present value of lease liabilities
Operating Lease, Liability
Revenues
Operating Lease, Lease Income
Vessel operating expenses
Operating income / (loss)
Operating Income (Loss)
General Information
General Information [Abstract]
OTHER INCOME / (EXPENSES)
Other non-current assets
Other Assets, Noncurrent
Other liabilities, non-current
Other Liabilities, Noncurrent
Common shares re-purchase and retirement, including expenses (Note 9)
Payments for Repurchase of Common Stock
Payments of financing costs (Note 7)
Payments of Financing Costs
Repurchase of Series B preferred shares (Note 9)
Payment for repurchase of preferred stock
Payments for Repurchase of Preferred Stock and Preference Stock
Property and equipment additions
Payments to Acquire Property, Plant, and Equipment
Plan Name [Domain]
Plan Name [Axis]
Preferred Stock [Member]
Gain from repurchase of preferred shares
Gain from repurchase of preferred shares (Notes 5 and 10)
Preferred stock, $0.01 par value; 25,000,000 shares authorized, none issued and outstanding as at June 30, 2021 and December 31, 2020, respectively (Note 9)
Preferred Stock, Value, Issued
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock, shares outstanding (in shares)
Preferred stock, shares outstanding (in shares)
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
Prepaid expenses and other assets
Prepaid Expense and Other Assets, Current
Proceeds from long-term bank debt (Note 7)
Proceeds from loan agreement
Proceeds from sale of vessels, net of expenses
Proceeds from Sale of Productive Assets
Property, Plant and Equipment [Line Items]
Vessels, net
Property, Plant and Equipment Disclosure [Text Block]
Vessels' improvements
Vessels, net [Abstract]
Vessels, net
Property, Plant and Equipment [Table Text Block]
Long-Lived Tangible Asset [Axis]
Long-Lived Tangible Asset [Domain]
Beginning balance
Ending balance
Total fixed assets
Property, Plant and Equipment, Net
Beginning balance
Ending balance
Property, Plant and Equipment, Gross
FIXED ASSETS:
Net Book Value [Abstract]
Provision for credit losses (Note 4)
Provision for credit losses
Receivable [Domain]
Revenues, Accounts Receivable and Provision for Credit Losses [Abstract]
Transactions with Related Parties [Abstract]
Related Party Transaction [Line Items]
Transaction with Related Parties [Abstract]
Related Party Transaction [Axis]
Related Party [Axis]
Transactions with Related Parties
Related Party Transaction [Domain]
Related Party [Domain]
Related party transaction amount
Related Party Transaction, Amounts of Transaction
Repayments of long-term bank debt (Note 7)
Repayments of Secured Debt
Cash and Cash Equivalents [Domain]
Restricted Stock [Member]
Restricted Shares [Member]
Accumulated Deficit [Member]
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Revenues
Revenue from Contract with Customer, Excluding Assessed Tax
Revenues, Accounts Receivable and Provision for Credit Losses
Revenue from Contract with Customer [Text Block]
Revenues [Abstract]
Revenue Recognition [Abstract]
Pool Revenues Accounting
Revenue Recognition, Leases [Policy Text Block]
REVENUES:
Voyage and time charter revenues (Note 4)
Expected life
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Term
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period
Vesting percentage
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage
Revenues [Member]
Maturities of Debt Facilities
Schedule of Maturities of Long-term Debt [Table Text Block]
Movement of Restricted Stock Cost
Voyage and Hire Revenues from Charterers
Earnings Per Share, Basic and Diluted
Long-term Debt
Schedule of Debt [Table Text Block]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Discontinued Operations
Disposal Groups, Including Discontinued Operations [Table Text Block]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Property, Plant and Equipment [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Schedule of Stock by Class [Table]
Current portion of long-term debt, net of unamortized deferred fin. costs (Note 7)
Current portion of long-term debt, net of deferred finance costs
Secured Debt, Current
Long-term debt, net of unamortized deferred financing costs (Note 7)
Non-current portion of long-term debt, net of deferred finance costs
Secured Long-term Debt, Noncurrent
Discontinued Operations [Member]
Series B Preferred Stock [Member]
Series C Preferred Stock [Member]
Vesting period
Stock options granted (in shares)
Weighted Average Grant Date Price [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Vested Ratably Over Two Years from Issuance Date [Member]
Vested on Issuance Date [Member]
Market value of common stock
Share Price
Vested Ratably Over Three Years from Issuance Date [Member]
Compensation cost on restricted stock and stock option awards (Note 9)
Share-based Payment Arrangement, Noncash Expense
Forfeited or expired (in dollars per share)
Share Repurchase Program [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Repurchase Program [Axis]
Share-based Payment Arrangement, Employee [Member]
Exercise price (in dollars per share)
Dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Outstanding at end of period (in dollars per share)
Outstanding at beginning of period (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Forfeited or expired (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Number of Shares [Roll Forward]
Vested (in dollars per share)
Granted (in dollars per share)
Outstanding at beginning of period (in shares)
Outstanding at end of period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Fair Value Assumptions for Valuing Stock Options Granted [Abstract]
Granted (in shares)
Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Risk free interest rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Number of shares issuable (in shares)
Number of shares reserved for issuance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Weighted average expected volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Award Type [Domain]
Stock Option Awards [Abstract]
Restricted Common Stock [Abstract]
Balance (in shares)
Balance (in shares)
Shares, Outstanding
Significant Accounting Policies and Recent Accounting Pronouncements
Consolidated Balance Sheets [Abstract]
Unaudited Interim Consolidated Statements of Comprehensive Income / (Loss) [Abstract]
Class of Stock [Axis]
Statement [Table]
Statement [Line Items]
Unaudited Interim Consolidated Statements of Cash Flows (continuing and discontinued operations) [Abstract]
Equity Components [Axis]
Unaudited Interim Consolidated Statements of Stockholders' Equity [Abstract]
Stock options exercised (in shares)
Conversion of Series B preferred stock to common stock (Note 9) (in shares)
Stock Issued During Period, Shares, Conversion of Convertible Securities
Number of shares sold during period (in shares)
Compensation cost on restricted stock and stock option awards (Note 9) (in shares)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture
Compensation cost on restricted stock (Note 9) (in shares)
Authorized share repurchase amount
Stock Option Awards [Abstract]
Compensation Cost on Restricted Common Stock [Abstract]
Shares Granted or Issued, Share-based Payment Arrangement [Abstract]
Number of shares repurchased and cancelled
Common shares re-purchase and retirement, including expenses (Note 9)
Stock Repurchased and Retired During Period, Value
Compensation cost on restricted stock (Note 9)
Number of shares repurchased and cancelled (in shares)
Common shares re-purchase and retirement (Note 9) (in shares)
Stock Repurchased and Retired During Period, Shares
Compensation cost on restricted stock and stock option awards (Note 9)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture
Conversion of Series B preferred stock to common stock (Note 9)
Stock Issued During Period, Value, Conversion of Convertible Securities
Reverse stock split ratio
Stockholders' Equity Note, Stock Split, Conversion Ratio
Total stockholders' equity
Balance
Balance
Stockholders' Equity Attributable to Parent
Changes in Capital Accounts
STOCKHOLDERS' EQUITY:
Changes in Capital Accounts [Abstract]
Subsequent Events [Abstract]
Subsequent Events
Subsequent Events [Text Block]
SUPPLEMENTAL CASH FLOW INFORMATION
Freight and Demurrage Receivables [Member]
Trade Accounts Receivable [Member]
Vesting [Axis]
Vesting [Domain]
Variable Rate [Axis]
Variable Rate [Domain]
Weighted average number of common shares, diluted (Note 10) (in shares)
Total shares outstanding (in shares)
Weighted average number of common shares, basic (Note 10) (in shares)
Weighted average number of common shares outstanding (in shares)
Chief Financial Officer [Member]
Directors [Member]
Director [Member]
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
Amendment Flag
Document Fiscal Period Focus
Document Period End Date
Entity Registrant Name
Entity Central Index Key
Entity File Number
Current Fiscal Year End Date
Entity Address, Address Line One
Entity Address, Address Line Two
Entity Address, Address Line Three
Entity Address, City or Town
Entity Address, State or Province
Entity Address, Country
Entity Address, Postal Zip Code
Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.
Foreign Currency Transaction Operating Gain (Loss), before Tax
Foreign currency losses
Voyage Expenses consisting of port, canal and bunker expenses and commission costs that are incurred on time-charter and voyage-charter arrangements. Commissions are paid directly to brokers by the company.
Voyage Expenses
Voyage expenses
Fees paid to third parties for providing technical and commercial services to the entity's vessels.
Management Fees
Management fees
The cash outflow associated with the acquisition of vessels and other vessel costs.
Vessel Acquisitions and Other Vessel Costs
Vessel acquisitions and other vessels' costs
The cash outflow associated with improvements to vessels.
Payments for Improvements to Vessels
Payments for vessels' improvements
The increase (decrease) during the reporting period in the aggregate amount of drydock costs.
Increase (Decrease) in Drydock Costs
Drydock costs
The cash outflow to reacquire preferred stock during the period, including expenses.
Payments for Repurchase of Preferred Stock, including Expenses
Repurchase of Series C preferred shares, including expenses (Note 9)
The increase (decrease) during the reporting period in right-of-use asset under operating lease.
Increase (Decrease) in Operating Lease Right-of-Use Asset
Right of use asset under operating leases
The net amount after accumulated depreciation, depletion and amortization of property and equipment.
Property and equipment, net
Property and equipment, net
Cost of vessels, including contract price and any material expenses incurred upon acquisition (initial repairs, improvements and delivery expenses, interest and on-site supervision costs incurred during the construction periods), less accumulated depreciation.
Vessels, net
Vessels, net (Note 6)
Operations of container vessels (containers segment).
Container Segment [Member]
Container Segment [Member]
Amount of write-down of assets, attributable to disposal group, including, but not limited to, discontinued operation.
Disposal Group, Including Discontinued Operation, Impairment Loss
Impairment losses
The number of vessels acquired by the entity.
Number of Vessels Acquired
Number of tanker vessels acquired
Professional and contract service expense includes cost reimbursements for support services related to contracted projects, outsourced management, technical and staff support from discontinued operations.
Disposal Group, Including Discontinued Operation, Management Fees
Management fees
Costs relating to the voyages performed by the vessels and may include port, canal, bunker expenses, commissions and other from discontinued operations.
Disposal Group, Including Discontinued Operation, Voyage Expenses
Voyage expenses
Primary financial statement caption encompassing voyage expenses.
Voyage Expenses [Member]
Voyage Expenses [Member]
Travel expenses incurred by the Company.
Travel Expenses [Member]
Travel Expenses [Member]
Number of preferred shares that have been repurchased and cancelled during the period.
Preferred Stock Repurchased and Cancelled During Period, Shares
Repurchase and cancellation of preferred stock (in shares)
Repurchase and cancellation of preferred stock (in shares)
A company controlled by the Company's Non-Executive Director and major shareholder Mrs Aliki Paliou that provides brokerage services to the Company.
Pure Brokerage and Shipping Corp. [Member]
Pure Brokerage [Member]
A travel agency controlled by the Company's Chairman of the Board, Mr. Symeon Palios.
Altair Travel Agency S.A [Member]
Altair [Member]
A global provider of shipping transportation services., founded by the Company's Chairman of the Board, Mr. Symeon Palios. The Company's Chief Executive Officer, Director and Secretary, Mr. Andreas Michalopoulos, also served as Chief Financial Officer and Treasurer of Diana Shipping Inc. through February 2020.
Diana Shipping Inc. [Member]
Diana Shipping Inc. [Member]
Sale and purchase commissions and chartering commissions on the gross freight and hire revenue of the tanker vessels.
Sale and Purchase Commissions [Member]
Commissions [Member]
Brokerage services provided to the Company under a Brokerage Services Agreement for a fixed monthly fee per each tanker vessel owned by the Company.
Brokerage Fees [Member]
Brokerage Fees [Member]
Amount of monthly lease cost under the lessee's operating lease contract.
Operating Lease, Monthly Cost
Monthly rent expense
Maximum pollution coverage per vessel per incident from the protection and indemnity association (P&I Association).
Maximum Pollution Coverage Per Vessel Per Incident
Pollution coverage per vessel per incident
Period of time after a policy year before the relevant insurance policy year is closed and adjustments to estimates of premium income and anticipated and paid claims are completed by the Board of Directors of the P&I Association, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
Closing Period for Relevant Insurance Policy Year
Closing period for relevant insurance policy year
Equity impact of the value of preferred stock that has been repurchased and cancelled during the period.
Preferred Stock Repurchased and Cancelled During Period, Value
Repurchase and cancellation of Series B preferred stock
Equity impact of the value of preferred stock that has been repurchased and cancelled, including expenses, during the period.
Preferred Stock Repurchased and Cancelled During Period, including Expenses, Value
Repurchase and cancellation of Series C preferred stock, including expenses
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 vessels under pool arrangement.
Number of vessels under pool arrangement
Number of vessels under pool arrangement
Charterer of tanker vessels with whom the Company does business.
Charterer D [Member]
Charterer D [Member]
Charterer of tanker vessels with whom the Company does business.
Charterer A [Member]
Charterer A [Member]
Charterer of tanker vessels with whom the Company does business.
Charterer C [Member]
Charterer C [Member]
Charterer of tanker vessels with whom the Company does business.
Charterer B [Member]
Charterer B [Member]
Under a pool arrangement, the Company enters into a time charter contract with a pool manager according to which it collects on a monthly basis hire proceeds over the term of the charter. The monthly proceeds are variable and are calculated according to the terms of the pool participation agreement.
Pool Charters [Member]
Pool Charters [Member]
A spot charter is a contract to carry specific cargo from a load port to a discharge port at a per-day rate or a per-ton carry amount, depending on the agreement.
Spot Charters [Member]
Spot Charters [Member]
A time charter is a contract to charter a vessel for a fixed period at a set daily rate.
Time Charters [Member]
Time Charters [Member]
Amount due for proceeds from insurance claims.
Insurance Claims Receivable [Member]
Insurance Claims [Member]
The grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.
Share Based Compensation Arrangement by Share Based Payment Award, Options, Grants in Period, Grant Date Fair Value
Fair value of award granted
Term of the risk-free interest rate assumption that is used in valuing an option on its own shares, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Term
Term of treasury yield
Secured term loan with Nordea Bank Abp, Filial i Norge (Nordea Bank).
Nordea Bank Secured Term Loan [Member]
Nordea Bank Secured Term Loan [Member]
Secured term loan with Piraeus Bank S.A. (Piraeus Bank).
Piraeus Bank Secured Term Loan [Member]
Piraeus Bank Secured Term Loan [Member]
Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt due after one year or beyond the operating cycle, if longer, excluding the current portion.
Long-term Debt, Gross, Noncurrent
Non-current portion of long-term debt
Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt due within one year or the operating cycle, if longer.
Long-term Debt, Gross, Current
Current portion of long-term debt
Secured term loans with Nordea Bank Abp, Filial i Norge (Nordea Bank) and Piraeus Bank S.A. (Piraeus Bank).
Nordea Bank and Piraeus Bank Loans [Member]
Nordea Bank and Piraeus Bank Loans [Member]
Minimum term of charter used as security under loan agreements, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
Minimum term of charter used as security under loan agreements
Minimum term of charter used as security under loan agreements
The number of vessel-owning subsidiaries entering into a loan agreement.
Debt Instrument, Number of Vessel-Owning Subsidiaries Entering Into Loan Agreement
Number of vessel-owning subsidiaries entering into loan agreement
Face amount of the debt instrument that is available for borrowing at time the agreement is executed and/or amended.
Debt Instrument, Borrowing Capacity
Borrowing capacity
The number of balloon installment payments to be paid under the debt instrument.
Debt Instrument, Number of Balloon Installment Payments
Number of balloon installment payments
Percentage fee charged by a bank for setting up a loan.
Debt Instrument, Arrangement fee percentage
Arrangement fee percentage
The number of long term loan agreements entered by the Company's vessel-owning subsidiaries.
Debt Instrument, Number of Long Term Loan Agreements
Number of long term loan agreements
Number of tanker vessels used as collateral to secure the debt instrument.
Debt Instrument, Number of Tanker Vessels Used as Collateral
Number of tanker vessels used as collateral
Watercraft used as a means of transportation on water.
Vessels [Member]
Shares that have been repurchased during the period and are being held in treasury.
Share Repurchase Program [Member]
Share Repurchase Program [Member]
The grant-date fair value of equity instruments other than options granted during the reporting period.
Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value
Fair value of award granted
Person with designation of executive officer and non executive directors.
Executive Officers And Non Executive Directors [Member]
Executive Officers and Non Executive Directors [Member]
The 2015 Equity Incentive Plan (2015 Plan) aligns the interests of eligible participants with those of the Company's stockholders by providing long-term incentive compensation opportunities tied to the performance of the Company and its Common Stock. The 2015 Plan is intended to advance the interests of the Company and increase stockholder value by attracting, retaining and motivating key personnel upon whose judgment, initiative and effort the successful conduct of the Company's business is largely dependent.
Equity Incentive Plan 2015 [Member]
2015 Equity Incentive Plan [Member]
Share-based payment arrangement granted on February 15, 2018.
Awarded 2018-02-15 [Member]
Awarded February 15, 2018 [Member]
Share-based payment arrangement granted on December 30, 2020.
Awarded 2020-12-30 [Member]
Awarded December 30, 2020 [Member]
Common stock representing ownership interest in a corporation.
Common Shares [Member]
Common Stock [Member]
Name of the entity.
Diana Wilhelmsen Management Limited [Member]
Diana Shipping Inc [Member]