CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Revenues	$ 69,961	$ 85,084	$ 134,295	$ 157,998
Operating Expenses:
Voyage Expenses	51,814	61,513	100,804	116,456
Vessel Depreciation	6,095	4,984	11,469	8,748
Administrative and General Expenses	5,455	5,415	11,284	11,434
Gain on Dry Bulk Transaction	(130)	0	(18,844)	0
Loss (Gain) on Sale of Other Assets	0	46	0	(75)
Total Operating Expenses	63,234	71,958	104,713	136,563
Operating Income	6,727	13,126	29,582	21,435
Interest and Other:
Interest Expense	2,330	2,433	4,620	4,032
Derivative Loss (Income)	106	0	(15)	0
Gain on Sale of Investments	(114)	(16)	(114)	(16)
Other Income from Vessel Financing	(672)	(590)	(1,360)	(1,194)
Investment Income	(185)	(987)	(385)	(1,166)
Foreign Exchange Loss	1,900	3,148	411	3,148
Total Interest and Other Income	3,365	3,988	3,157	4,804
Income Before Provision (Benefit) for Income Taxes and Equity in Net (Loss) Income of Unconsolidated Entities	3,362	9,138	26,425	16,631
Provision (Benefit) for Income Taxes:
Current	173	170	381	323
Deferred	0	(200)	0	(965)
Income Tax Expense (Benefit)	173	(30)	381	(642)
Equity in Net (Loss) Income of Unconsolidated Entities (Net of Applicable Taxes)	(351)	448	874	2,911
Net Income	$ 2,838	$ 9,616	$ 26,918	$ 20,184
Basic and Diluted Earnings Per Common Share:
Basic Earnings Per Common Share: (in dollars per share)	$ 0.39	$ 1.33	$ 3.72	$ 2.79
Diluted Earnings Per Common Share: (in dollars per share)	$ 0.39	$ 1.32	$ 3.70	$ 2.76
Weighted Average Shares of Common Stock Outstanding:
Basic (in shares)	7,228,252	7,242,126	7,230,530	7,245,642
Diluted (in shares)	7,265,092	7,295,638	7,260,598	7,308,398
Dividends Per Share (in dollars per share)	$ 0.375	$ 0.0375	$ 0.750	$ 0.875