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Note 4 - Inventories (Detail) (USD $)	Dec. 31, 2011
Idle Inventories	$ 975,000

X

- Definition

Inventory subject to litigation hold.

+ References

No definition available.

+ Details

Name:	cvv_IdleInventories
Namespace Prefix:	cvv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant