Summary of Significant Accounting Policies (Schedule of Estimated Useful Life) (Details)	12 Months Ended
Dec. 31, 2017 USD ($)
Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	30 years
Salvage value percentage	0.00%
Tractors [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	80 months
Salvage value percentage	0.00%
Trailers [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	12 years
Salvage value	$ 1,000
Service and Other Equipment [Member]
Property, Plant and Equipment [Line Items]
Salvage value percentage	0.00%
Minimum \| Service and Other Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Maximum \| Service and Other Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 35
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68071081&loc=d3e1205-110223

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Period Type:	duration

- 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.

+ Details

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- Definition

The estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose).

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Stated as a percentage, the estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose) divided by its [historical] capitalized cost.

+ References

No definition available.

+ Details

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- Details

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- Details

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