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COMMITMENTS AND CONTINGENT LIABILITIES (Guarantees and Obligations) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
COMMITMENTS AND CONTINGENT LIABILITIES [Abstract]
Guarantees outstanding	$ 1,202

X

- Definition

Outstanding bank guarantees.

+ References

No definition available.

+ Details

Name:	cste_DebtInstrumentThirdPartyCreditEnhancementAmount
Namespace Prefix:	cste_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration