[Line Items] for Accounting Policies [Table]

No definition available.

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13476-108611

+ Details

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- Definition

Amount of long-term debt and capital lease obligations including current maturities.

+ References

No definition available.

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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- Definition

The number of units (items of property) under operating lease arrangements.

+ References

No definition available.

+ Details

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- Definition

Fees charged to customers for the delivery, generally by postal or freight service providers, of product or goods purchased.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 45
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=68075638&loc=d3e60635-111653

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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Balance Type:	credit
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- Details

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- Details

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- Details

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- Details

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- Details

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Nature of Operations and Summary of Significant Accounting Policies (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) rail_car office_space segment	Dec. 31, 2016 USD ($) segment	Dec. 31, 2015 USD ($)
Accounting Policies [Line Items]
Number of reportable segments \| segment	2	2
Shipping and handling revenue	$ 14,761	$ 13,974	$ 14,498
Debt instrument, fair value disclosure	24,838	37,412
Long-term debt, including current maturities	$ 24,554	$ 36,001
Property under operating lease \| Rail cars
Accounting Policies [Line Items]
Property subject to operating leases, number of units \| rail_car	223
Property under operating lease \| Office space
Accounting Policies [Line Items]
Property subject to operating leases, number of units \| office_space	1
Buildings and improvements \| Minimum
Accounting Policies [Line Items]
Useful life	20 years
Buildings and improvements \| Maximum
Accounting Policies [Line Items]
Useful life	40 years
Transportation equipment \| Minimum
Accounting Policies [Line Items]
Useful life	5 years
Transportation equipment \| Maximum
Accounting Policies [Line Items]
Useful life	6 years
Machinery and equipment \| Minimum
Accounting Policies [Line Items]
Useful life	10 years
Machinery and equipment \| Maximum
Accounting Policies [Line Items]
Useful life	12 years