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Transactions with Related Parties - Statements of Operations (Table) (Details) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019
Related Party Transaction [Line Items] |  |
Consultancy fees | $ (327) | $ (328)
General and administrative expenses | (14,991) | (17,062)
Management fees | (9,202) | (8,188)
Charter - in hire expenses | (14,053) | (44,442)
Interchart [Member] |  |
Related Party Transaction [Line Items] |  |
Voyage expenses | (1,890) | (1,950)
Directors [Member] |  |
Related Party Transaction [Line Items] |  |
Compensation | (87) | (87)
Combine Marine Ltd. and Alma Properties [Member] |  |
Related Party Transaction [Line Items] |  |
Office rent | (19) | (9)
Oceanbulk Maritime and its affiliates [Member] |  |
Related Party Transaction [Line Items] |  |
General and administrative expenses | (143) | (78)
Augustea Technoservices Ltd. [Member] |  |
Related Party Transaction [Line Items] |  |
Management fees | (3,276) | (3,254)
Songa Shipmanagement Ltd. [Member] |  |
Related Party Transaction [Line Items] |  |
Management fees | 0 | (32)
AOM [Member] |  |
Related Party Transaction [Line Items] |  |
Charter - in hire expenses | (1,654) | 0
Sydelle [Member] |  |
Related Party Transaction [Line Items] |  |
Charter - in hire expenses | (540) | 0
Coromel Maritime Limited [Member] |  |
Related Party Transaction [Line Items] |  |
Charter - in hire expenses | $ (249) | $ 0

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- Definition The fees related to receiving management consultancy services during the reporting period. + References No definition available. + Details
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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. + Details
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977 + Details
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- Definition Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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- Definition 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. + References No definition available. + Details
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