Goodwill and Other Intangible Assets (Details) (USD $)	3 Months Ended		6 Months Ended								3 Months Ended					3 Months Ended		3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012		Aug. 06, 2012 FSI		Nov. 30, 2012 UOS		Jun. 30, 2013 Trade Names [Member] FSI	Jun. 30, 2013 Trade Names [Member] UOS	Jun. 30, 2013 Customer Relationships [Member] FSI	Jun. 30, 2013 Customer Relationships [Member] UOS	Jun. 30, 2013 Favorable Lease [Member]	Jun. 30, 2013 Favorable Lease [Member] UOS	Jun. 30, 2013 Favorable Lease [Member] UOS EBO Acquisition [Member]	Jun. 30, 2013 Favorable Charter [Member] Dry Bulk [Member]
Goodwill [Abstract]
Additions	$ 71,000
Gross Carrying Amount	2,771,000		2,771,000
Accumulated Amortization	0		0
Net Carrying Amount	2,771,000		2,771,000		2,700,000	[1]	828,000	[2]	1,943,000	[3]
Total Indefinite Life Intangibles [Abstract]
Gross Carrying Amount	2,771,000		2,771,000
Accumulated Amortization	0		0
Net Carrying Amount	2,771,000		2,771,000
Finite-Lived Intangible Assets [Line Items]
Amortization Period											240 months	96 months	240 months	96 months		13 months		24 months
Total Definite Life Intangibles [Abstract]
Gross Carrying Amount	50,773,000		50,773,000								65,000	1,805,000	425,000	30,928,000		1,071,000	11,328,000	5,151,000
Accumulated Amortization	(8,137,000)		(8,137,000)								(3,000)	(132,000)	(18,000)	(2,256,000)		(577,000)	0	(5,151,000)
Net Carrying Amount	42,636,000		42,636,000								62,000	1,673,000	407,000	28,672,000	11,328,000	494,000		0
Amortization expense	$ 1,300,000	$ 643,875	$ 3,148,000	$ 1,288,000

[1] The addition of $71,000 in goodwill is associated with post acquisition settlement adjustments on our 2012 acquistions. FSI was increased by $29,000 and UOS was increased by $42,000.

[2] Goodwill is calculated as the excess of the consideration transferred over the net assets acquired and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Our above-described goodwill will not be amortized nor do we expect it to be deductible for tax purposes. Specifically, the goodwill recorded as part of the acquisition of FSI and Tower includes the following: · the expected synergies and other benefits that we believe will result from combining the operations of the Acquired Companies with our existing Rail-Ferry operations. · any intangible assets that do not qualify for separate recognition, including an assembled workforce of the acquired companies, and · the anticipated higher rate of return of the Acquired Companies existing businesses as going concerns compared to the anticipated rate of return if we had acquired all of the net assets separately.

[3] Goodwill is calculated as the excess of the consideration transferred over the net assets acquired and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Our above-described goodwill will not be amortized nor do we expect it to be deductible for tax purposes. Specifically, the goodwill recorded as part of the acquisition of UOS includes the following: · the expected synergies and other benefits that we believe will result from combining the operations of UOS with our existing Jones Act operations. · any intangible assets that do not qualify for separate recognition, including an assembled workforce of the acquired company, and · the anticipated higher rate of return of UOS’s existing businesses as going concerns compared to the anticipated rate of return if we had acquired all of the net assets separately.