XML 37 R56.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Note 12 - Defined Contribution Plan (Detail) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Minimum Period of Continuous Service to be Eligible for Defined Contribution Plan Participation | 3 months |
Defined Contribution Plan, Administrative Expenses | $ 2,317 | $ 2,430

X
- Definition Minimum Period of Continuous Service to be Eligible for Defined Contribution Plan Participation + References No definition available. + Details
Name: | cvv_MinimumPeriodOfContinuousServiceToBeEligibleForDefinedContributionPlanParticipation
Namespace Prefix: | cvv_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of administrative expenses incurred by a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanAdministrativeExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration