Document and Entity Information - USD ($)	12 Months Ended
	Mar. 31, 2024	Jun. 04, 2024	Sep. 30, 2023
Cover [Abstract]
Document Type	10-K/A
Amendment Flag	false
Document Annual Report	true
Document Period End Date	Mar. 31, 2024
Current Fiscal Year End Date	--03-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Document Transition Report	false
Entity File Number	001-33861
Entity Registrant Name	MOTORCAR PARTS OF AMERICA, INC
Entity Central Index Key	0000918251
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	11-2153962
Entity Address, Address Line One	2929 California Street
Entity Address, City or Town	Torrance
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90503
City Area Code	310
Local Phone Number	212-7910
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	MPAA
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 151,868,000
Entity Common Stock, Shares Outstanding		19,662,380
Auditor Name	Ernst & Young LLP
Auditor Location	Los Angeles, California
Auditor Firm ID	42