Note 10 - Investment in Joint Venture (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Note 10 - Investment in Joint Venture (Details) [Line Items]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	$ 19,953,665	$ 21,215,870
Euromar LLC Joint Venture (Member)
Note 10 - Investment in Joint Venture (Details) [Line Items]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Maximum Investment		25,000,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	$ 19,953,665	$ 21,215,870

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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 210.5-02.12)

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

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