Cover - shares	3 Months Ended
	Mar. 31, 2024	May 10, 2024
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2024
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2024
Current Fiscal Year End Date	--12-31
Entity File Number	1-41509
Entity Registrant Name	Nxu, Inc.
Entity Central Index Key	0001722969
Entity Tax Identification Number	92-2819012
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	1828 N. Higley Rd. Ste 116
Entity Address, City or Town	Mesa
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85205
City Area Code	(760)
Local Phone Number	515-1133
Title of 12(b) Security	Class A Common Stock, par value $0.0001 per share
Trading Symbol	NXU
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Elected Not To Use the Extended Transition Period	true
Entity Shell Company	false
Common Class A [Member]
Entity Common Stock, Shares Outstanding		11,930,986
Common Class B [Member]
Entity Common Stock, Shares Outstanding		258,503