Debt Obligations (Schedule Of Long-Term Debt) (Details) ¥ in Billions								1 Months Ended					3 Months Ended	9 Months Ended		12 Months Ended
		Nov. 04, 2015	Apr. 24, 2015 JPY (¥)	Apr. 24, 2015 USD ($)	Aug. 26, 2014 USD ($) item	Nov. 13, 2011	Jun. 20, 2011 USD ($) item	Aug. 31, 2014 USD ($) item	Jan. 24, 2012 USD ($)	Dec. 31, 2011 USD ($) item	Nov. 30, 2011 USD ($)	Aug. 31, 2010 USD ($) item	Mar. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Total principal due														$ 213,716,000		$ 242,888,000
Less current maturities														(211,353,000)		(23,367,000)
Less: Debt Issuance Costs														(2,363,000)		(2,870,000)
Long-Term Debt, Net																216,651,000
Proceeds from borrowings of line of credit														5,000,000	$ 33,000,000
Line of credit														40,000,000
Pre-funding of upcoming quarterly debt payment, amount														$ 1,135,000		$ 1,394,000
Notes Payable - Variable Rate 2018, Tranche A [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)	[1]													2.6704%		2.7471%
Maturity date	[1]													2018
Total principal due	[1]													$ 9,449,000		$ 12,025,000
Business acquisition interest in acquiree							100.00%
Proceeds from borrowings of line of credit							$ 24,100,000
Notes Payable - Variable Rate 2018, Tranche B [Member]
Debt Instrument [Line Items]
Debt instrument interst rate, minimum	[1]															2.7312%
Maturity date	[1]													2018
Total principal due	[1]													$ 25,760,000		$ 41,400,000
Proceeds from borrowings of line of credit							$ 23,300,000		$ 12,700,000		$ 6,100,000
Notes Payable - Variable Rate 2017 [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)	[2]													2.547%		2.505%
Maturity date	[2]													2017
Total principal due	[2]													$ 7,464,000		$ 9,144,000
Notes Payable - Variable Rate 2018c [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)	[1]													2.693%		2.735%
Maturity date	[1]													2018
Total principal due	[1]													$ 14,452,000		$ 15,394,000
Notes Payable - Variable Rate 2020 [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)	[3]													4.16%		3.61%
Maturity date	[3]													2020
Total principal due	[3]													$ 31,200,000		$ 24,812,000
Notes Payable - Variable Rate 2018d [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)	[4]													3.96%		3.99%
Maturity date	[4]													2018
Total principal due	[4]													$ 39,375,000		$ 41,906,000
Notes Payable - Fixed Rate 2020 [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)	[5]													4.35%		4.35%
Maturity date	[5]													2020
Total principal due	[5]													$ 35,538,000		$ 37,759,000
Notes Payable - Variable Rate 2021 [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)	[6]													2.948%		2.9195%
Maturity date	[6]													2021
Total principal due	[6]													$ 19,473,000		$ 21,943,000
Note Payable - Mortgage [Member]
Debt Instrument [Line Items]
Total principal due	[7]													$ 5,000		$ 5,000
Notes Payable - Variable Rate 2018 Tranche I [Member]
Debt Instrument [Line Items]
Secured term loan facility fully drawn amount												$ 36,800,000
Notes Payable - Variable Rate 2018 Tranche II [Member]
Debt Instrument [Line Items]
Secured term loan facility fully drawn amount												$ 18,400,000
Old Line Of Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)	[4]													3.96%		3.91%
Maturity date	[4]													2018
Total principal due	[4]													$ 31,000,000		$ 38,500,000
Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Term loan facility principal amount														$ 45,000,000
Senior Secured Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate														3.50%
Senior Secured Credit Facility [Member] | Subsequent Event [Member] | LIBOR [Member] | November 13,2015 through June 30, 2016 [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate						9.25%
Senior Secured Credit Facility [Member] | Subsequent Event [Member] | LIBOR [Member] | July 1, 2016 through July 20, 2017 [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate						10.00%
Standby Letters of Credit [Member]
Debt Instrument [Line Items]
Line of credit														$ 20,000,000
Swingline Loans [Member]
Debt Instrument [Line Items]
Line of credit														$ 5,000,000
Capital One N.A. [Member]
Debt Instrument [Line Items]
Term loan facility principal amount										$ 15,700,000
Debt instrument term, years														5 years
Number of quarterly payments | item										59
Final quarterly balloon payment										$ 4,700,000
Loan Agreement [Member]
Debt Instrument [Line Items]
Pre-funding of upcoming quarterly debt payment, amount														$ 400,000
ING Bank [Member]
Debt Instrument [Line Items]
Term of financing agreement in years												7 years		7 years
Number of tranches | item							2					2
ING Bank [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate														2.50%
ING Bank [Member] | Subsequent Event [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate		4.50%
Handysize Vessel [Member]
Debt Instrument [Line Items]
Number of vessels covered by Tranch I | item												2
Related debt paid off													$ 13,500,000
Handysize Vessel [Member] | ING Bank [Member]
Debt Instrument [Line Items]
Number of vessels financed | item												3
DVB Bank SE [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)														4.35%
DVB Bank SE [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)		6.35%
DVB Bank SE [Member] | Loan Agreement [Member]
Debt Instrument [Line Items]
Term loan facility principal amount					$ 38,500,000
Number of quarterly payments | item					24
Final quarterly balloon payment					$ 20,700,000
DVB Bank SE [Member] | New Loan Agreement [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)				4.16%
Term loan facility principal amount				$ 32,000,000
Final quarterly balloon payment				16,800,000
Pre-funding of upcoming quarterly debt payment, amount														$ 700,000
Related debt paid off			¥ 2.9	$ 24,000,000
Term for principal to be paid quarterly														5 years
Amortization period														10 years
DVB Bank SE [Member] | New Loan Agreement [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)		6.35%
RBS Asset Finance [Member] | Loan Agreement [Member]
Debt Instrument [Line Items]
Term loan facility principal amount								$ 23,000,000
Number of monthly payments | item								84
RBS Asset Finance [Member] | Loan Agreement [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate								2.75%
DNB Bank [Member]
Debt Instrument [Line Items]
Bank debt owed to DnB ASA paid off								$ 11,400,000

[1] We entered into a variable rate financing agreement with ING Bank N.V, London branch in August 2010 for a seven year facility to finance the construction and acquisition of three Handysize vessels. Pursuant to the terms of the facility, the lender agreed to provide a secured term loan facility divided into two tranches which corresponded to the vessel delivery schedule. Tranche I covered the first two vessels delivered with Tranche II covering the last vessel. Tranche I was fully drawn in the amount of $36.8 million, and Tranche II fully drawn at $18.4 million We entered into a variable rate financing agreement with ING Bank N.V., London branch in June 2011 for a seven year facility to finance the acquisition of a Capesize vessel and a Supramax Bulk Carrier newbuilding, both of which we acquired a 100% interest in as a result of our acquisition of Dry Bulk. Pursuant to the terms of the facility, the lender agreed to provide a secured term loan facility divided into two tranches: Tranche A, fully drawn in June 2011 in the amount of $24.1 million, and Tranche B, providing up to $23.3 million of additional credit. Under Tranche B, we drew $6.1 million in November 2011 and $12.7 million in January 2012. In order to aid in the collateral value coverage covenant, both of the above facilities were merged into one facility without altering the debt maturities or terms of our indebtedness. Effective November 4, 2015, the interest rate was increased from LIBOR plus 2.5% to LIBOR plus 4.5%. For other changes to the credit facility, refer to Note 21 - Subsequent Events.

[2] In December 2011, we entered into a variable rate financing agreement with Capital One N.A. for a five year facility totaling $15.7 million to finance a portion of the acquisition price of a multi-purpose ice strengthened vessel. This loan requires us to make 59 monthly payments with a final balloon payment of $4.7 million in January 2017.

[3] As discussed in greater detail above, in April of 2015, we obtained a new loan with DVB Bank SE in the amount of $32.0 million. Interest under the new loan is payable at a fixed rate of 4.16% with the principal being paid quarterly over a five-year term based on an amortization of ten years with a final quarterly balloon payment of $16.8 million due in April 2020. This loan requires us to pre-fund a portion of the upcoming quarterly scheduled debt payment, which, at September 30, 2015, constituted $0.7 million and is included as restricted cash on our Condensed Consolidated Balance Sheet. This facility was amended on June 30, 2015 to change the borrower from LCI Shipholdings, Inc. to East Gulf Shipholding, Inc. Effective November 4, 2015, the interest rate increased from 4.16% fixed to 6.35% fixed. This loan is required to be paid off by

[4] As described in greater detail above, our senior secured Credit Facility matures on September 24, 2018 and, at September 30, 2015, included a term loan facility in the original principal amount of $45.0 million and a LOC in the principal amount up to $40.0 million. The LOC facility includes a $20.0 million sublimit for the issuance of standby letters of credit and a $5.0 million sublimit for swingline loans.

[5] We entered into a fixed rate financing agreement with DVB Bank SE, on August 26, 2014 in the amount of $38.5 million, collateralized by our 2007 PCTC at a rate of 4.35% with 24 quarterly payments with a final balloon payment of $20.7 million in August 2020. This loan requires us to pre-fund a one-third portion of the upcoming quarterly scheduled debt payment, which, at September 30, 2015, constituted $0.4 million and is included as restricted cash on our Condensed Consolidated Balance Sheet.

[6] In August 2014, we paid off our $11.4 million loan with DNB Bank and obtained a new loan with RBS Asset Finance in the amount of $23.0 million collateralized by one of our 1999 PCTCs at a variable rate equal to the 30-day Libor rate plus 2.75% payable in 84 monthly installments with the final payment due August 2021.

[7] Represents additional bank financing to fund the construction and renovation of our office building in New Orleans, Louisiana.