Document And Entity Information - shares	9 Months Ended
	Jan. 31, 2017	Mar. 01, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jan. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Entity Registrant Name	AMREP CORP.
Entity Central Index Key	0000006207
Current Fiscal Year End Date	--04-30
Entity Filer Category	Smaller Reporting Company
Trading Symbol	AXR
Entity Common Stock, Shares Outstanding		8,077,954