Note 3 - Vessels (Details) - Vessels (USD $)	6 Months Ended
Jun. 30, 2013
Vessels [Abstract]
Vessels and Vessel Improvements	$ 1,714,307,653
Purchase of Vessel Improvements	92,100
Depreciation Expense	(37,135,028)
Vessels and Vessel Improvements	$ 1,677,264,725

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration