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Basis of Presentation and General information (Table) (Details) | 6 Months Ended
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Jun. 30, 2015 | Jun. 30, 2014
Concentration Risk [Line Items] |  |
Concentration risk percentage | 87.00% | 88.00%
Major customer A [member] |  |
Concentration Risk [Line Items] |  |
Concentration risk percentage | 25.00% | 27.00%
Major customer B [member] |  |
Concentration Risk [Line Items] |  |
Concentration risk percentage | 31.00% | 28.00%
Major customer C [Member] |  |
Concentration Risk [Line Items] |  |
Concentration risk percentage | 13.00% | 14.00%
Major customer D [Member] |  |
Concentration Risk [Line Items] |  |
Concentration risk percentage | 18.00% | 19.00%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 + Details
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