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Note 10 - Long-Term Debt (Details) - Summary of Long Tem Debt (USD $) | Dec. 31, 2013 | Dec. 31, 2012
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Debt Instrument [Line Items] |  |
Bank loans | $ 45,644,000 | $ 61,581,000
Less: Current portion | (12,862,000) | (15,937,000)
Long-term portion | 32,782,000 | 45,644,000
Prospero Maritime Inc. Borrower [Member] |  |
Debt Instrument [Line Items] |  |
Bank loans |  | 4,675,000
Xingang Shipping Ltd. / Alcinoe Shipping Ltd Borrower [Member] |  |
Debt Instrument [Line Items] |  |
Bank loans | 5,000,000 | 6,000,000
Manolis Shipping Ltd. Borrower [Member] |  |
Debt Instrument [Line Items] |  |
Bank loans | 5,840,000 | 6,480,000
Trust Navigation Corp. / Tiger Navigation Co. Borrower [Member] |  |
Debt Instrument [Line Items] |  |
Bank loans |  | 2,000,000
Saf-Concord Shipping Ltd. Borrower [Member] |  |
Debt Instrument [Line Items] |  |
Bank loans | 5,250,000 | 6,250,000
Eleni Shipping Ltd. Borrower [Member] |  |
Debt Instrument [Line Items] |  |
Bank loans | 5,400,000 | 7,000,000
Pantelis Shipping Corp. Borrower [Member] |  |
Debt Instrument [Line Items] |  |
Bank loans | 7,360,000 | 8,480,000
Aggeliki Shipping Ltd. Borrower [Member] |  |
Debt Instrument [Line Items] |  |
Bank loans | 4,864,000 | 6,076,000
Noumea Shipping Ltd. Borrower [Member] |  |
Debt Instrument [Line Items] |  |
Bank loans | $ 11,930,000 | $ 14,620,000

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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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- Definition Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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