Document And Entity Information - shares	9 Months Ended
	Feb. 28, 2022	Apr. 07, 2022
Document Information Line Items
Entity Registrant Name	TSR, Inc.
Trading Symbol	TSRI
Document Type	10-Q
Current Fiscal Year End Date	--05-31
Entity Common Stock, Shares Outstanding		2,146,448
Amendment Flag	false
Entity Central Index Key	0000098338
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Period End Date	Feb. 28, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-38838
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-2635899
Entity Address, Address Line One	400 Oser Avenue
Entity Address, City or Town	Hauppauge
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11788
Local Phone Number	231-0333
Title of 12(b) Security	Common Stock, par value $0.01 per share
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes
City Area Code	631