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Note 1 - Basis of Presentation and General Information (Detail) | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | --- | ---
Percentage of Voyage and Time Charter Revenues | 10.00% | 10.00% | 10.00%
Pittas Family [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 44.70% |  |
Nikolaos P [Member] |  |  |
Deadweight Tonnage |  | 34,750 |
Pantelis P [Member] |  |  |
Deadweight Tonnage |  | 26,354 |
Gregos [Member] |  |  |
Deadweight Tonnage |  | 38,691 |
Kuo Hsiung [Member] |  |  |
Deadweight Tonnage |  | 18,154 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 1,169 |
Ninos [Member] |  |  |
Deadweight Tonnage |  | 18,253 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 1,169 |
Irini [Member] |  |  |
Deadweight Tonnage |  | 69,734 |
Artemis [Member] |  |  |
Deadweight Tonnage |  | 29,693 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 2,098 |
Tasman Trader [Member] |  |  |
Deadweight Tonnage |  | 22,568 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 950 |
Aristides N.P. [Member] |  |  |
Deadweight Tonnage |  | 69,268 |
YM Xingang I [Member] |  |  |
Deadweight Tonnage |  | 23,596 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 1,599 |
Manolis P [Member] |  |  |
Deadweight Tonnage |  | 20,346 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 1,452 |
Clan Gladiator [Member] |  |  |
Deadweight Tonnage |  | 30,007 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 1,742 |
Jonathan P [Member] |  |  |
Deadweight Tonnage |  | 33,667 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 1,932 |
Despina P [Member] |  |  |
Deadweight Tonnage |  | 33,667 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 1,932 |
Tiger Bridge [Member] |  |  |
Deadweight Tonnage |  | 31,627 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 2,228 |
Ioanna P [Member] |  |  |
Deadweight Tonnage |  | 64,873 |
Maersk Noumea [Member] |  |  |
Deadweight Tonnage |  | 34,677 |
Twenty-Foot Equivalent Units (in Cubic Feet) |  | 2,556 |
Monica P [Member] |  |  |
Deadweight Tonnage |  | 46,667 |
Eleni P [Member] |  |  |
Deadweight Tonnage |  | 72,119 |
Pantelis [Member] |  |  |
Deadweight Tonnage |  | 74,020 |
Aggeliki P [Member] |  |  |
Deadweight Tonnage |  | 30,306 |

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