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NATURE OF BUSINESS (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 Vessel | Dec. 31, 2012 Vessel | Dec. 31, 2004 Vessel | Dec. 31, 2013 Nordic Harrier [Member] t | Dec. 31, 2013 Nordic Hawk [Member] t | Dec. 31, 2013 Nordic Hunter [Member] t | Dec. 31, 2013 Nordic Voyager [Member] t | Dec. 31, 2013 Nordic Fighter [Member] t | Dec. 31, 2013 Nordic Freedom [Member] t | Dec. 31, 2013 Nordic Discovery [Member] t | Dec. 31, 2013 Nordic Saturn [Member] t | Dec. 31, 2013 Nordic Jupiter [Member] t | Dec. 31, 2013 Nordic Moon [Member] t | Dec. 31, 2013 Nordic Apollo [Member] t | Dec. 31, 2013 Nordic Cosmos [Member] t | Dec. 31, 2013 Nordic Sprite [Member] t | Dec. 31, 2013 Nordic Grace [Member] t | Dec. 31, 2013 Nordic Mistral [Member] t | Dec. 31, 2013 Nordic Passat [Member] t | Dec. 31, 2013 Nordic Vega [Member] t | Dec. 31, 2013 Nordic Breeze [Member] t | Dec. 31, 2013 Nordic Aurora [Member] t | Dec. 31, 2013 Nordic Zenith [Member] t | Dec. 31, 2013 Scandic [Member] | Dec. 31, 2013 Orion [Member] | Jan. 02, 2013 Orion [Member]
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of vessels | 20 | 20 | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of entity acquired (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 50.00% | 50.00%
Increase in general and administrative expenses | $ 2.2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average approximate deadweight tons per vessel (in deadweight tons) | 156,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deadweight tons |  |  |  | 151,459 | 151,475 | 151,401 | 149,591 | 153,328 | 159,331 | 153,328 | 157,331 | 157,411 | 160,305 | 159,998 | 159,999 | 147,188 | 149,921 | 164,236 | 164,274 | 163,940 | 158,597 | 147,262 | 158,645 |  |  |

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- Definition The increase or decrease in general and administrative expenses due to the consolidation of acquisitions during the period reported. + 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 Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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