| Cover | Dec. 07, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 07, 2023 |
| Entity File Number | 001-38838 |
| Entity Registrant Name | TSR, Inc. |
| Entity Central Index Key | 0000098338 |
| Entity Tax Identification Number | 13-2635899 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 400 Oser Avenue |
| Entity Address, Address Line Two | Suite 150 |
| Entity Address, City or Town | Hauppauge |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 11788 |
| City Area Code | 631 |
| Local Phone Number | 231-0333 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Trading Symbol | TSRI |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
