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Transactions with Related Parties - Statements of Operations (Table) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Related Party Transaction [Line Items]
Management fee income	$ 456	$ 137
Oceanbulk Maritime S.A. (d)
Related Party Transaction [Line Items]
Commision on sale of vessel	(90)	(91)
Interchart Shipping Inc. (a)
Related Party Transaction [Line Items]
Voyage expenses	(397)	(710)
Executive directors (b)
Related Party Transaction [Line Items]
Consultancy fees	(246)	(228)
Non-executive directors (b)
Related Party Transaction [Line Items]
Compensation	(51)	(67)
Combine Marine Ltd. (c)
Related Party Transaction [Line Items]
Office rent	(20)	(19)
Maiden Voyage LLC (e)
Related Party Transaction [Line Items]
Management fee income	136	0
OOCAPE1 Holdings LLC (f)
Related Party Transaction [Line Items]
Management fee income	136	0
Product Shipping & Trading S.A. (g)
Related Party Transaction [Line Items]
Management fee income	$ 40	$ 0

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- Definition

Commisions on sale of assets.

+ References

No definition available.

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Balance Type:	debit
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- Definition

Expenditures for compensation for non executive officers.Examples include, but not limited to, Board of Director's attendance fees.

+ References

No definition available.

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- Definition

Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses.

+ References

No definition available.

+ Details

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- Definition

Base revenue, as contractually stipulated, for operating and managing another entity's business during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(d))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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- Details

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- Definition

Primarily represents commissions incurred in the period based upon the sale by commissioned employees or third parties of the entity's goods or services, and fees for sales assistance or product enhancements performed by third parties (such as a distributor or value added reseller).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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- Definition

The aggregate costs related to delivering management services during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2(d))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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