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Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2012
Accrued Liabilities |
|  | December 31, 2012 $ |  |  | December 31, 2011 $ |
Voyage and vessel expenses |  |  | 144,250 |  |  |  | 209,058 |
Interest |  |  | 66,125 |  |  |  | 63,310 |
Payroll and benefits and other |  |  | 100,452 |  |  |  | 83,528 |
Deferred revenue |  |  | 52,391 |  |  |  | 38,690 |
|  |  | 363,218 |  |  |  | 394,586 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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