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Note 9 - Related Party Transactions (Details) | 12 Months Ended |  | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended
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Dec. 31, 2013 USD ($) | Dec. 31, 2013 EUR (€) | Dec. 31, 2012 EUR (€) | Dec. 31, 2011 EUR (€) | Dec. 31, 2012 USD ($) | Dec. 31, 2013 Euromar LLC Joint Venture (Member) | Dec. 31, 2012 Inflation Adjusted [Member] Eurobulk Marine Holdings Inc. [Member] EUR (€) | Dec. 31, 2012 Inflation Adjusted [Member] Eurobulk Marine Holdings Inc. [Member] EUR (€) | Dec. 31, 2013 After Discount [Member] Eurobulk Marine Holdings Inc. [Member] EUR (€) | Dec. 31, 2012 Jonathan P [Member] USD ($) | Dec. 31, 2013 Anking and Irini [Member] USD ($) | Jul. 31, 2013 Joanna [Member] | Dec. 31, 2013 Joanna [Member] USD ($) | Jan. 31, 2014 Eurobulk Marine Holdings Inc. [Member] USD ($) | Dec. 31, 2013 Eurobulk Marine Holdings Inc. [Member] USD ($) | Dec. 31, 2012 Eurobulk Marine Holdings Inc. [Member] USD ($) | Dec. 31, 2011 Eurobulk Marine Holdings Inc. [Member] USD ($) | Dec. 31, 2011 Eurobulk Marine Holdings Inc. [Member] EUR (€) | Dec. 31, 2013 Eurobulk Marine Holdings Inc. [Member] Greater Than Twenty [Member] | Dec. 31, 2013 Vessel Sales [Member] | Dec. 31, 2013 Charter Revenues [Member] | Dec. 31, 2013 Eurochart [Member] USD ($) | Dec. 31, 2012 Eurochart [Member] USD ($) | Dec. 31, 2011 Eurochart [Member] USD ($) | Dec. 31, 2013 Sentinel and More [Member] Maximum [Member] | Dec. 31, 2013 Sentinel [Member] USD ($) | Dec. 31, 2012 Sentinel [Member] USD ($) | Dec. 31, 2011 Sentinel [Member] USD ($) | Dec. 31, 2013 Technomar [Member] USD ($) | Dec. 31, 2012 Technomar [Member] USD ($) | Dec. 31, 2011 Technomar [Member] USD ($) | Dec. 31, 2013 Euroseas Ltd (Member) | Dec. 31, 2013 Vessel Management Fees (Member) USD ($) | Dec. 31, 2012 Vessel Management Fees (Member) USD ($) | Dec. 31, 2011 Vessel Management Fees (Member) USD ($)
Note 9 - Related Party Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction Daily Fee (in Euro) |  | € 685 | € 685 | € 700 |  |  |  |  |  |  |  |  |  |  |  |  |  | € 700 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction, Amounts of Transaction |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 | 1,900,000 | 1,850,000 | 1,225,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,891,024 | 4,984,098 | 5,810,095
Related Party Agreement Term |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction Discount Percentage |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Vessels |  |  |  |  |  | 10 |  |  |  |  |  | 1 |  |  |  |  |  |  | 20 |  |  |  |  |  |  |  |  |  |  |  |  | 14 |  |  |
Related Party Transaction Daily Fee Per Vessel Per Day In Operation (in Euro) |  |  |  |  |  |  |  | 720 | 685 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction Daily Fee Per Vessel Per Day In Lay Up (in Euro) |  |  |  |  |  |  | 360 |  | 342.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due from Related Parties | 903,478 |  |  |  | 4,948,443 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction Commission Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% | 1.25% |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |
Related Party Transaction Commissions Received Percentage | 1.00% | 1.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  |  |  |  |  |  |  |  | 43,823 | 76,183 |  | 59,000 |  |  |  |  |  |  |  |  | 474,466 | 641,104 | 766,304 |  | 128,742 | 130,699 | 173,717 | 270,923 | 217,141 | 219,014 |  |  |  |
Related Party Transaction Amounts Of Transaction Per Crew Member Per Month | $ 60 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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