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Note 6 - Long-term Debt (Details) - Summary of Long-term Debt - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Bank loans	$ 49,821,000	$ 54,257,000
Less: Current portion	(18,556,000)	(19,512,000)
Long-term portion	31,265,000	34,745,000
Xingang Shipping Ltd. / Alcinoe Shipping Ltd Borrower [Member]
Debt Instrument [Line Items]
Bank loans	3,800,000	4,200,000
Manolis Shipping Ltd. Borrower [Member]
Debt Instrument [Line Items]
Bank loans	5,000,000	5,200,000
Saf-Concord Shipping Ltd. Borrower [Member]
Debt Instrument [Line Items]
Bank loans	3,750,000	4,250,000
Pantelis Shipping Corp. Borrower [Member]
Debt Instrument [Line Items]
Bank loans	5,680,000	6,240,000
Aggeliki Shipping Ltd. Borrower [Member]
Debt Instrument [Line Items]
Bank loans	3,046,000	3,652,000
Noumea Shipping Ltd. Borrower [Member]
Debt Instrument [Line Items]
Bank loans	8,520,000	9,240,000
Eirini Shipping Ltd. [Member]
Debt Instrument [Line Items]
Bank loans	13,900,000	14,600,000
Euroseas Ltd (Member)
Debt Instrument [Line Items]
Bank loans	$ 6,125,000	$ 6,875,000

X

- 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 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 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 03



-Paragraph 16



-Article 9

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- Definition

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+ References

No definition available.

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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

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- Definition

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+ 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 210.5-02.22)



-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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