Document And Entity Information - USD ($)	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Jul. 10, 2023	Oct. 31, 2022
Document And Entity Information
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Entity File Number	1-4702
Amendment Flag	false
Document Period End Date	Apr. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Registrant Name	AMREP CORP.
Entity Incorporation, State or Country Code	OK
Entity Tax Identification Number	59-0936128
Entity Central Index Key	0000006207
Entity Address, Address Line One	850 West Chester Pike, Suite 205
Entity Address, City or Town	Havertown
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19083
City Area Code	610
Local Phone Number	487-0905
Current Fiscal Year End Date	--04-30
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding			5,254,909
Title of 12(b) Security	Common Stock $0.10 par value
Trading Symbol	AXR
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Public Float				$ 46,091,272
Document Financial Statement Error Correction [Flag]	false
Auditor Name	Baker Tilly US, LLP	Marcum LLP
Auditor Firm ID	23	688
Auditor Location	Philadelphia, Pennsylvania	Philadelphia, Pennsylvania