Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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The portion of the carrying value of subordinated debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle, if longer. Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

+ References

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Carrying value as of the balance sheet date of collateralized/uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Subordinated debt places a lender in a lien position behind the primary lender of the company.

+ References

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SUBORDINATED DEBT (Schedule of Long-term Debt Instruments) (Details) - USD ($) $ in Thousands	Mar. 13, 2014	Jun. 30, 2017	Mar. 31, 2017	Mar. 27, 2017	Mar. 11, 2014
Debt Instrument [Line Items]
Subordinated Debt		$ 85,632	$ 80,577
Long-term debt, gross		145,120	121,196
Current portion of subordinated debt, net		85,632	80,577
Subordinated debt		0	0
Subordinated Debt
Debt Instrument [Line Items]
Long-term debt, gross		85,632	81,694
Debt issuance costs, net		0	(1,117)
United States of America, Dollars \| Subordinated Debt
Debt Instrument [Line Items]
Unused borrowing capacity, amount				$ 22,500	$ 32,500
United States of America, Dollars \| Lower Lakes Towing Ltd. \| Subordinated Debt \| Second Lien Canadian Term Loan
Debt Instrument [Line Items]
Subordinated Debt		43,652	41,645
United States of America, Dollars \| Grand River Navigation Company, Inc. \| Subordinated Debt \| Second Lien US Term Loan
Debt Instrument [Line Items]
Subordinated Debt		$ 41,980	$ 40,049
LIBOR \| Lower Lakes Towing Ltd. \| Subordinated Debt \| Second Lien Canadian Term Loan
Debt Instrument [Line Items]
Basis spread on variable rate	9.50%
LIBOR \| Grand River Navigation Company, Inc. \| Subordinated Debt \| Second Lien US Term Loan
Debt Instrument [Line Items]
Basis spread on variable rate	9.50%
US Base Rate \| Lower Lakes Towing Ltd. \| Subordinated Debt \| Second Lien Canadian Term Loan
Debt Instrument [Line Items]
Basis spread on variable rate	8.50%
US Base Rate \| Grand River Navigation Company, Inc. \| Subordinated Debt \| Second Lien US Term Loan
Debt Instrument [Line Items]
Basis spread on variable rate	8.50%