Cover - shares	9 Months Ended
	Sep. 30, 2023	Nov. 09, 2023
Cover [Abstract]
Entity Registrant Name	ENGlobal Corporation
Entity Central Index Key	0000933738
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--12-28
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Sep. 30, 2023
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2023
Entity Common Stock Shares Outstanding		40,998,947
Entity File Number	001-14217
Entity Incorporation State Country Code	NV
Entity Tax Identification Number	88-0322261
Entity Address Address Line 1	11740 Katy Fwy – Energy Tower III
Entity Address Address Line 2	11th floor
Entity Address City Or Town	Houston
Entity Address State Or Province	TX
Entity Address Postal Zip Code	77079
City Area Code	281
Local Phone Number	878-1000
Security 12b Title	Common Stock, $0.001 par value
Trading Symbol	ENG
Security Exchange Name	NASDAQ
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes