v3.5.0.2

Note 3 - Leased Equipment (Details Textual)	12 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
19th Capital Group, LLC [Member] | Assets With Transferred Title [Member]
Property Subject to or Available for Operating Lease, Net	$ 37,000,000
Related Party Transaction, Amounts of Transaction	30,000,000
Tractors [Member] | Minimum [Member]
Lessor Leasing Arrangements, Operating Leases, Monthly Payments	2,000
Lessor Leasing Arrangements, Operating Leases, Residual Payments	0
Tractors [Member] | Maximum [Member]
Lessor Leasing Arrangements, Operating Leases, Monthly Payments	4,000
Lessor Leasing Arrangements, Operating Leases, Residual Payments	$ 70,000
Tractors [Member]
Lessor Leasing Arrangements, Operating Leases, Term of Contract	5 years
Property Subject to or Available for Operating Lease, Number of Units	1,300
Trailers [Member]
Property Subject to or Available for Operating Lease, Number of Units	900
Property Subject to or Available for Operating Lease, Net	$ 99,300,000

X

- Definition

Amount of monthly payments under operating leases.

+ References

No definition available.

+ Details

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Namespace Prefix:	cgi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Residual payments under operating lease arrangements.

+ References

No definition available.

+ Details

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Namespace Prefix:	cgi_
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X

- Definition

Term of the lessor's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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X

- Definition

The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718

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X

- Definition

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

+ References

No definition available.

+ Details

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X

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864

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