CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net Cash Provided By Used In Operating Activities [Abstract]
Profit Loss	$ 8,549,791	$ 11,093,191	$ (13,311,885)
Depreciation Nonproduction	27,562,120	26,624,098	26,766,672
Amortization of deferred charges	395,446	508,686	202,770
Amortization Of Intangible Assets			(181,552)
Effect Of Exchange Rate On Cash And Cash Equivalents	(6,868)	(1,690,528)
Forfeiture of vessels deposit and contract termination fees			16,500,000
Share Based Compensation	4,071	154,442	573,855
Unrealized Gain Loss On Derivatives	3,734,845	(15,993)	1,454,894
Impairment Of Long Lived Assets To Be Disposed Of			9,867,777
Net (gain) loss on sale of vessels	5,654,178	(960,696)	791,659
Increase Decrease In Accounts Receivable	910,922	(601,406)	716,483
Increase Decrease In Contract Receivables Net	(715,934)	(580,579)	(642,259)
Increase Decrease In Inventories	(576,016)	306,827	(892,777)
Increase Decrease In Prepaid Expense	148,503	(151,256)	186,784
Increase Decrease In Accounts Payable Related Parties	(1,640,382)	2,205,275	4,902,720
Increase Decrease In Accounts Payable Trade	1,692,418	537,841	967,373
Increase Decrease In Accrued Liabilities	(684,432)	(661,728)	1,577,225
Increase Decrease In Other Accrued Liabilities	(2,687,500)	(8,062,500)
Increase Decrease In Deferred Revenue	34,556	(889,333)	(1,132,396)
Net Cash Provided By Used In Operating Activities	42,375,718	27,816,341	48,347,343
Net Cash Provided By Used In Investing Activities [Abstract]
Proceeds From Insurance Settlement Investing Activities	(595,926)	(678,036)	(755,713)
Advances for vessel under construction and acquisitions	54,981,190	70,855,294	112,312,053
Proceeds From Sale Of Property Plant And Equipment	(25,001,033)	(37,100,890)	(11,669,374)
Increase Decrease In Restricted Cash	(2,209,165)	(96,010)	(1,676,749)
Net Cash Provided By Used In Investing Activities	31,593,396	33,172,378	101,563,715
Net Cash Provided By Used In Financing Activities [Abstract]
Proceeds from (Repurchase of) Equity	(2,234,214)	(6,280,327)
Payments of Dividends (Inflow)/Outflow			4,183,146
Proceeds from (Payments for) Other Financing Activities	(785,000)	(360,000)	(1,119,300)
Proceeds from customer deposits	275,000	285,000
Payments for customer deposits	(285,000)	(3,522,287)	(1,381,099)
Proceeds from Other Debt	(43,417,768)	(45,736,121)	(26,021,803)
Proceeds from (Repayments of) Other Long-term Debt	49,400,000	45,000,000	88,150,000
Net Cash Provided By Used In Financing Activities	2,953,018	(10,613,735)	55,444,652
Foreign Currency Transaction Gain Loss Unrealized	6,868	1,690,528
Cash And Cash Equivalents Period Increase Decrease	13,742,208	(14,279,244)	2,228,280
Cash And Cash Equivalents At Beginning Of Period	29,797,095	44,076,339	41,848,059
Cash And Cash Equivalents At End Of Period	43,539,303	29,797,095	44,076,339
Supplemental Cash Flow Information [Abstract]
Interest Paid Net	$ 7,566,151	$ 6,755,101	$ 8,716,032

Cash advance payments to ship-builders for vessels under construction.

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Payments from customer deposits.

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The amount of amortization of deferred charges applied against earnings during the period.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents.

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The net change between the beginning and ending balance of cash and cash equivalents.

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The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives.

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The effect of exchange rate changes on cash balances held in foreign currencies.

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The aggregate unrealized foreign currency transaction gain or loss (pretax) included in determining net income for the reporting period. Represents the aggregate of gains and losses on transactions that are unsettled as of the balance sheet date, which is therefore an adjustment to reconcile income (loss) from continuing operations to net cash provided by (used in) continuing operations. (Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting entity's financial statements. For certain entities, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains or losses may be disclosed as dealer gains or losses.)

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Change in recurring obligations of a business that arise from the acquisition of merchandise, materials, supplies and services used in the production and sale of goods and services.

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The net change during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

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The net change during the reporting period in the aggregate amount of expenses incurred but not yet paid.

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The net change during the reporting period in receivables arising from the contracting of goods and services, net for uncollectible accounts.

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The net change during the reporting period, excluding the portion taken into income, in the liability reflecting services yet to be performed by the reporting entity for which cash or other forms of consideration was received or recorded as a receivable.

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The net change during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

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The net change during the reporting period in other expenses incurred but not yet paid. This element should be used when there is no other more specific or appropriate element.

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The net change during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods.

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The net cash inflow (outflow) for the net change associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.

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The amount of cash paid during the current period for interest owed on money borrowed, net of interest capitalized.

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The net cash inflow (outflow) from financing activity for the period.

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The net cash inflow (outflow) from investing activity.

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The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities.

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The cash outflow from the entity's earnings to the shareholders.

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The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains only to insurance proceeds related to investments, for example fixed assets. It excludes insurance settlements classified as operating cash flows.

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The cash inflow from other borrowing not otherwise defined in the taxonomy.

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The net cash inflow (outflow) from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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Net change in economic resources obtained through long-term financing, include net changes in Other Long-Term Debt not otherwise defined.

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The net cash inflow (outflow) resulting from the entity's share transaction.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock options, amortization of restricted stock, and adjustment for officers compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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The increases (decreases) in the market value of derivative instruments, including options, swaps, futures, and forward contracts, which were included in earnings in the period.

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