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Note 4 - Advances for Vessels Acquisitions / Under Construction: (Details) (USD $) | 1 Months Ended |  |  |  |  |  | 1 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended |  | 1 Months Ended |  | 0 Months Ended |
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Mar. 19, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Dec. 16, 2013 | Dec. 05, 2013 | Jun. 24, 2011 | Mar. 19, 2014 Option To Extend [Member] Hull S418 [Member] | Mar. 19, 2014 Option To Extend [Member] Hull S407 [Member] | Dec. 16, 2013 Option To Extend [Member] Vessel Two [Member] | Mar. 19, 2014 Option to Extend Year Two [Member] Hull S418 [Member] | Mar. 19, 2014 Hull S418 [Member] T | Dec. 05, 2013 Hull S418 [Member] T | Mar. 19, 2014 Hull S407 [Member] T | Feb. 14, 2014 Hull S407 [Member] | Feb. 06, 2014 Hull S407 [Member] | Dec. 16, 2013 Hull S407 [Member] T | Feb. 06, 2014 Hull S406 [Member] T | Mar. 31, 2014 Hull S406 [Member] | Mar. 19, 2014 Hull S418 and Hull S407 [Member] | Mar. 19, 2014 Hull S414 [Member] T | Mar. 19, 2014 Hull S417 [Member] T | Mar. 19, 2014 Hull S419 [Member] T | Mar. 31, 2014 Hull Nos. S407, S414, S417, S418 and S419 [Member] | Dec. 05, 2013 Vessel One [Member] T | Dec. 16, 2013 Vessel Two [Member] T | Mar. 31, 2014 Capitalized Expenses [Member]
Note 4 - Advances for Vessels Acquisitions / Under Construction: (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Size of Vessel (in US Ton) |  |  |  |  |  |  |  |  |  |  | 39,000 | 39,000 | 50,000 |  |  | 50,000 | 50,000 |  |  | 50,000 | 50,000 | 39,000 |  | 39,000 | 50,000 |
Vessel Acquisition Purchase Price |  |  |  | $ 37,000,000 | $ 35,000,000 |  |  |  |  |  |  | $ 35,000,000 |  |  | $ 38,300,000 | $ 37,000,000 |  |  | $ 14,693,000 | $ 10,990,000 | $ 10,820,000 | $ 6,830,000 |  | $ 35,000,000 | $ 37,000,000 |
Vessel Acquisition Deposit |  |  |  |  |  |  |  |  |  |  |  | 7,000,000 |  |  |  | 7,400,000 |  |  |  |  |  |  |  | 7,000,000 | 7,400,000 |
Payment to Purchase of Vessel |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,500,000 | 7,400,000 |  |  |  |  |  |  |  |  |  |  |
Accounts Payable |  |  |  |  |  |  |  |  |  |  |  |  |  | 27,400,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred | 43,333,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross | 2,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares) | 5,833,214 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Capital Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% | 100.00% | 100.00% |  |  |  |
Charter Term |  |  |  |  |  |  |  |  |  |  | 3 years |  | 2 years |  |  |  |  |  |  |  |  |  |  |  | 2 years |
Charter Rate Per Day |  |  |  |  |  |  | 16,000,000 | 17,250,000 | 17,250,000 | 16,750,000 | 15,200,000 |  | 16,000,000 |  |  |  |  |  |  |  |  |  |  |  | 16,000,000 |
Agreement Deposit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,000,000 |  |  |  |  |  |  |
Advances For Vessels Acquisitions Under Construction |  | $ 33,007,000 | $ 14,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,900 |  |  |  |  | $ 22,084 |  |  | $ 23
Right to Buy Back Shares (in Shares) | 2,046,342 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Price (in Dollars per share) | $ 8.404 |  |  |  |  | $ 0.01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessel Acquisition Deposit Percentage |  |  |  | 20.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.00% | 20.00% |
Vessel Acquisition Balance On Delivery Percentage |  |  |  | 80.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80.00% | 80.00% |

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