| Document And Entity Information | Apr. 25, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Apr. 25, 2022 |
| Entity Registrant Name | ENNIS, INC. |
| Entity Central Index Key | 0000033002 |
| Entity Emerging Growth Company | false |
| Entity File Number | 1-5807 |
| Entity Incorporation, State or Country Code | TX |
| Entity Tax Identification Number | 75-0256410 |
| Entity Address, Address Line One | 2441 Presidential Pkwy. |
| Entity Address, City or Town | Midlothian |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 76065 |
| City Area Code | 972 |
| Local Phone Number | 775-9801 |
| 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 $2.50 per share |
| Trading Symbol | EBF |
| Security Exchange Name | NYSE |
