XML 67 R56.htm IDEA: XBRL DOCUMENT
v3.23.1

Note 11 - Employee Retention Credit (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Increase (Decrease) in Employee Retention Credit Receivable | $ 1,529 | $ (0)
Employee Retention Credit Receivable, Noncurrent | 1,529 | 0
Employee retention credits | $ 1,529 | $ 0

X
- Definition Amount of employee retention credit receivable classified as noncurrent. + References No definition available. + Details
Name: | cvv_EmployeeRetentionCreditReceivableNoncurrent
Namespace Prefix: | cvv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of income from employee retention tax credits. + References No definition available. + Details
Name: | cvv_EmployeeRetentionTaxCreditsIncome
Namespace Prefix: | cvv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase (decrease) in employee retention credit receivable. + References No definition available. + Details
Name: | cvv_IncreaseDecreaseInEmployeeRetentionCreditReceivable
Namespace Prefix: | cvv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration