Represents the amount of total purchase made by the investee accounted for under the equity method of accounting.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the percentage of total glass fiber requirements agreed to be purchased by the investee accounted for under the equity method of accounting.

+ References

No definition available.

+ Details

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Namespace Prefix:	ccf_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=65897068&loc=SL4591551-111686

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=64809438&loc=SL4573702-111684

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=ccf_NEPTCOIncMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
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Joint Venture (Details) - USD ($) $ in Thousands		1 Months Ended		2 Months Ended	12 Months Ended
Joint Venture (Details) - USD ($) $ in Thousands	Oct. 31, 2014	Oct. 31, 2014	Jun. 30, 2012	Oct. 31, 2014	Aug. 31, 2015
Joint Venture
Net gain attributable to non-controlling interest					$ 95
JV \| Joint venture partner
Joint Venture
Purchases made				$ 332
NEPTCO
Joint Venture
Percentage of ownership stake acquired	50.00%		50.00%
Net gain attributable to non-controlling interest					$ 95
NEPTCO \| Joint venture partner \| Minimum
Joint Venture
Percentage of total glass fiber requirements agreed to be purchased		80.00%	80.00%