Statement of Financial Position [Abstract] Cash and cash equivalents Cash and cash equivalents at beginning of year Cash and cash equivalents at end of year Trade accounts receivable, net Other receivables Inventories Inventory Restricted cash Prepaid expenses Vessel held for sale Total current assets Vessels, net Balance, January 1, 2014 Ending balance, net book value Advances for vessels under construction Advance for Vessel Acquisition Restricted cash Deferred charges, net Balance, beginning of year Balance, end of year Other investments Balance Balance Other investment Investment in joint venture Equity Method Investments Total long-term assets Total assets Long-term debt, current portion Less: Current portion Trade accounts payable Accrued expenses Total Liabilities from assets held for sale Disposal Group, Including Discontinued Operation, Liabilities, Current Deferred revenues Due to related company Derivatives Interest rate swap contracts Total current liabilities Long-term debt, net of current portion Long-term portion Derivatives Interest rate contracts Total long-term liabilities Total liabilities Preferred shares (par value $0.01, 20,000,000 shares authorized, 32,140 and 33,779 issued and outstanding, respectively) Balance Preferred shares, par value (in Dollars per share) Preferred shares, shares authorized Preferred shares, shares issued Preferred shares, shares outstanding Balance (in Shares) Common stock (par value $0.03, 200,000,000 shares authorized, 5,715,731 and 8,195,760 issued and outstanding) Common stock, par value (in Dollars per share) Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Additional paid-in capital Accumulated deficit Total shareholders’ equity Balance Balance Total liabilities and shareholders’ equity Income Statement [Abstract] Voyage revenue Related party revenue Commissions (including, $474,466 $517,828 and $475,792, respectively, to related party) Commissions Net revenue Voyage expenses Vessel operating expenses (including, $399,665, $347,363 and $305,150, respectively, to related party) Vessel operating expenses Vessel operating expenses Dry-docking expenses Vessel depreciation Depreciation of vessels - Depreciation for the year Related party management fees Other general and administrative expenses (including $1,900,000, $2,000,000 and $2,000,000, respectively, to related party) Other general and administrative expenses Net loss/(gain) on sale of vessels (including $76,183 and $77,022 to related party) Loss / (gain) on sale of vessels Gain (Loss) on Disposition of Property Plant Equipment Net loss/(gain) on sale of vessels Impairment loss and loss on write-down of vessel held for sale Asset Impairment Charges - Impairment loss Impairment loss Total operating expenses Operating loss Interest and other financing costs Loss on derivatives, net Total loss on derivatives Foreign exchange gain / (loss) Investment income Total gain for period included in Investment income Interest income Other expenses, net Equity loss in joint venture Loss in investment in joint venture Income (Loss) from Equity Method Investments Net loss Net loss Dividends to Series B preferred shares Net loss attributable to common shareholders Net loss Net loss attributable to common shareholders’ Loss per share attributable to common shareholders - basic and diluted (in Dollars per share) Earnings Per Share, Basic and Diluted (in Dollars per share) Weighted average number of shares outstanding during the year, basic and diluted (in Shares) Statement of Stockholders' Equity [Abstract] Balance (in Shares) Balance (in Shares) Issuance of restricted shares for stock incentive award and share-based compensation Issuance of restricted shares for stock incentive award and share-based compensation (in Shares) Dividends declared ($0.45 per share) Dividends declared, per share Sale of Stock [Axis] Private Placement [Member] Issuance of shares, net of issuance costs Issuance of preferred shares from private placement net of issuance costs Issuance of shares, net of issuance costs (in Shares) Issuance of preferred shares from private placement net of issuance costs (in Shares) Stock Issued During Period, Shares, New Issues (in Shares) Canceled shares due to repurchase program Canceled shares due to repurchase program (in Shares) Rights Offering [Member] Rounding of stock split Rounding of stock split (in Shares) (in Shares) Equity Components [Axis] Common Stock [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Statement of Cash Flows [Abstract] Amortization of deferred charges Share-based compensation Unrealized gain on derivatives Other income accrued Investment Income, Dividend Trade accounts receivable Prepaid expenses Other receivables Inventories Due from related company Due to related company Trade accounts payable Accrued expenses Deferred revenue Net cash provided by / (used in) operating activities Advances for vessels under construction Advance received for vessel held for sale Contributions to joint venture Purchase of a vessel Payments to Acquire Property, Plant, and Equipment Other investments Release of restricted cash Increase in restricted cash Proceeds from sale of vessels Proceeds from Sale of Property, Plant, and Equipment Net cash used in investing activities Proceeds from issuance of preferred stock, net of commissions paid Proceeds from issuance of common stock, net of commissions paid Proceeds from Issuance of Common Stock Funds used for common stock buyback Offering expenses paid Dividends paid Loan arrangement fees paid Proceeds from long-term debt Proceeds from Issuance of Long-term Debt Repayment of long-term debt Net cash (used in) / provided by financing activities Net (decrease) / increase in cash and cash equivalents Cash paid for interest, net of capitalized expenses Loan arrangement fees accrued Offering expenses accrued “Payment-in-kind” dividends Dividends, Paid-in-kind Capital expenditures included in liabilities Disclosure Text Block [Abstract] Charterers Individually Accounted for More than 10% of the Company’s Voyage and Time Charter Revenues [Abstract] Concentration Risk Benchmark [Axis] Sales Revenue, Net [Member] Concentration Risk Type [Axis] Customer Concentration Risk [Member] Customer [Axis] Charterer CMA [Member] Percentage of revenue by charter Charterer GSS [Member] Charterer MSC [Member] Accounting Policies [Abstract] Inventory Disclosure [Abstract] Summary of Inventories [Abstract] Inventory [Axis] Lubricant [Member] Victualling [Member] Bunkers [Member] Advances For Vessels Under Construction [Abstract] Property, Plant and Equipment [Abstract] Summary of Vessels [Abstract] Balance, January 1, 2014 Ending balance, costs Balance, January 1, 2014 Ending balance, accumulated depreciation - Purchase of vessel - Impairment loss - Sale of vessels - Vessel held for sale Deferred Charges [Abstract] Summary of Deferred Charges [Abstract] Amortization of loan arrangement fees Deferred offering expenses Loan arrangement fees Payables and Accruals [Abstract] Summary of Accrued Expenses [Abstract] Accrued payroll expenses Accrued interest Accrued general and administrative expenses Accrued commissions Other accrued expenses