XML 51 R37.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Note 9 - Stock-based Compensation Expense - Compensation Expense (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Stock-based compensation | $ 118,548 | $ 105,491 | $ 307,379 | $ 217,942
Cost of Revenue [Member] |  |  |  |
Stock-based compensation | 9,221 | 7,715 | 26,100 | 7,715
Research and Development Expense [Member] |  |  |  |
Stock-based compensation | 16,367 | 3,972 | 42,684 | 3,972
Selling and Shipping [Member] |  |  |  |
Stock-based compensation | 7,508 | 4,371 | 18,305 | 4,371
General and Administrative [Member] |  |  |  |
Stock-based compensation | $ 85,452 | $ 89,433 | $ 220,290 | $ 201,884

X
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=cvv_CostOfRevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_ResearchAndDevelopmentExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=cvv_SellingAndShippingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=cvv_GeneralAndAdministrativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |