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STOCKHOLDERS' EQUITY (Details Narrative) (USD $)	Mar. 31, 2013
Stockholders Equity Details Narrative
Equity issued under 2008 plan	$ 0

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- Details

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Namespace Prefix:	cpka_
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Balance Type:	na
Period Type:	duration

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- Definition

Equity issued under 2008 plan.

+ References

No definition available.

+ Details

Name:	cpka_EquityIssuedUnderPlan
Namespace Prefix:	cpka_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant