Business Description	12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]
Business Description	Note 1 – Business Description CVD Equipment Corporation and its subsidiaries (the “Company”) is a New York corporation. Its principal business activities include designing, developing, and manufacturing a broad range of chemical vapor deposition, physical vapor transport, gas control, and other equipment and process solutions used to develop and manufacture materials and coatings for industrial applications and research. The Company’s products are used in production environments as well as research and development centers, both academic and corporate. On March 23, 2026, the Company entered into an agreement to sell its SDC business division to a subsidiary of the Atlas Copco Group. See Note 15 – Subsequent Event.

The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483426/235-10-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 205
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/205/tableOfContent

Name:	us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration