Document And Entity Information - shares	6 Months Ended
	Dec. 31, 2020	Jan. 29, 2021
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Registrant Name	ALLIED HEALTHCARE PRODUCTS INC
Entity Central Index Key	0000874710
Current Fiscal Year End Date	--06-30
Entity Filer Category	Non-accelerated Filer
Trading Symbol	AHPI
Entity Common Stock, Shares Outstanding		4,013,537
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common Stock
Security Exchange Name	NASDAQ