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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Cash and Cash Equivalents [Abstract] |  |  |
Original maturities of deposits classified as cash and cash equivalents (in months) | 3M |  |
Drydock [Abstract] |  |  |
Period when vessels are required to be drydocked, minimum (in months) | 30M |  |
Period when vessels are required to be drydocked, maximum (in months) | 60M |  |
Segments [Abstract] |  |  |
Number of operating segment | 1 |  |
Number of types of vessel | 1 |  |
Geographical Segment [Abstract] |  |  |
Total number of vessels | 20 | 17 | 15
Share-based compensation [Abstract] |  |  |
Number of individual deferred compensation agreements | 2 |  |
Vessels [Member] |  |  |
Vessels, net [Abstract] |  |  |
Estimated useful life (in years) | 25 |  |
Ballast Tank [Member] |  |  |
Vessels, net [Abstract] |  |  |
Estimated useful life (in years) | 8 |  |

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- Details
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- Details
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- Definition The number of individual deferred compensation agreements during the period. + References No definition available. + Details
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- Definition The number of operating segment during the year. + References No definition available. + Details
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- Definition The number of different types of vessels owned and operated by the Company. + References No definition available. + Details
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- Definition The original maturity, in months, of deposits classified as cash and cash equivalents. + References No definition available. + Details
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- Definition The maximum period when the vessels are expected to be drydocked for overhaul repairs and maintenance. + References No definition available. + Details
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- Definition The minimum period when the vessels are expected to be drydocked for overhaul repairs and maintenance. + References No definition available. + Details
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- Definition The total number of vessels during the period, which may include crude oil tankers and new vessels under construction to be used in the normal conduct of business and not intended for resale. + References No definition available. + Details
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- Definition The average useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References No definition available. + Details
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