Number of vessels that are held-for-sale

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Number of vessels that are to be sold.

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The per ton scrap value of property, plant, and equipment.

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Long lived, depreciable assets used for the primary purpose of water transportation, net of accumulated depreciation.

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of equity securities categorized neither as held-to-maturity nor as trading.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Note 4 - Significant Accounting Policies (Details Textual)	3 Months Ended			9 Months Ended	12 Months Ended
	Dec. 31, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Oct. 15, 2014 USD ($) t	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($) t	Dec. 31, 2015 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2014 USD ($)
Restricted Cash and Cash Equivalents	$ 74,917		$ 141,161			$ 74,917	$ 141,161
Impairment of Long-Lived Assets Held-for-use	122,860,600	$ 6,167,262	50,872,734
Vessels and Vessel Improvements, Net	$ 234,860,600					$ 234,860,600		$ 234,860,600	$ 76,332,734
Number of Vessels Sold	4	4				4
Number of Vessels, Held-for-sale	2	2				2
Available-for-sale Securities, Equity Securities	$ 0		$ 0			$ 0	0
Taxes as a Result of SEC 883 Non-qualification [Member]
Income Tax Expense (Benefit)						$ 600,000	300,000
Minimum [Member]
Property, Plant and Equipment, Useful Life						3 years
Maximum [Member]
Property, Plant and Equipment, Useful Life						10 years
Vessels and Vessel Improvements [Member]
Assets, Fair Value Disclosure				$ 842,625,000
Impairment of Long-Lived Assets Held-for-use	$ 122,860,600	$ 6,167,262				$ 122,860,600	$ 50,872,734
Vessels [Member]
Property, Plant and Equipment, Useful Life				28 years		25 years
Property, Plant, and Equipment, Scrap Value Per Ton \| t				150		300
December 31, 2015 [Member] \| Reclassification of Deferred Financing Costs to Reduction of Long-term Debt [Member]
Prior Period Reclassification Adjustment						$ 435,816
December 31, 2016 [Member] \| Reclassification from Restricted Cash to Cash and Cash Equivalents [Member] \| Scenario, Forecast [Member]
Prior Period Reclassification Adjustment					$ 74,917
Cost Reclassification from Vessel Expenses to General and Administrative Expenses [Member] \| Year Ended December 31, 2015 [Member]
Prior Period Reclassification Adjustment						6,100,000
Cost Reclassification from Vessel Expenses to General and Administrative Expenses [Member] \| Period Between October 16, 2014 and December 31, 2014 [Member]
Prior Period Reclassification Adjustment						1,200,000
Cost Reclassification from Vessel Expenses to General and Administrative Expenses [Member] \| Period Between January 1, 2014 and October 15, 2014 [Member]
Prior Period Reclassification Adjustment						$ 4,700,000