Cover - USD ($)	12 Months Ended
	Dec. 31, 2020	Nov. 17, 2021	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K/A
Amendment Flag	true
Amendment Description	CPI Aerostructures, Inc. (“CPI Aero”, the “Company”, “we”, “our” and similar terms) is filing this Amendment No. 1 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020 (the “Comprehensive Form 10-K/A”) to amend and restate certain items presented in our (i) Annual Report on Form 10-K for the year ended December 31, 2020 which was initially filed with the Securities and Exchange Commission (the “SEC”) on April 15, 2020 (the “Original Form 10-K”) and (ii) Quarterly Reports on Form 10-Q for the quarters ended March 31, 2020, June 30, 2020 and September 30, 2020, which were initially filed with the SEC on September 30, 2020, November 16, 2020 and November 17, 2020, respectively (the “Original Forms 10-Q”).
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2020
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020
Current Fiscal Year End Date	--12-31
Entity File Number	1-11398
Entity Registrant Name	CPI AEROSTRUCTURES, INC.
Entity Central Index Key	0000889348
Entity Tax Identification Number	11-2520310
Entity Incorporation, State or Country Code	NY
Entity Address, Address Line One	91 Heartland Blvd.
Entity Address, City or Town	Edgewood
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11717
City Area Code	(631)
Local Phone Number	586-5200
Title of 12(b) Security	Common Stock, $.001 par value
Trading Symbol	CVU
Security Exchange Name	NYSEAMER
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	No
Entity Interactive Data Current	No
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 38,647,281
Entity Common Stock, Shares Outstanding		12,312,347