Cover
Cover | Jan. 20, 2023 |
Cover [Abstract] | |
Document Type | 8-K |
Amendment Flag | false |
Document Period End Date | Jan. 20, 2023 |
Current Fiscal Year End Date | --08-31 |
Entity File Number | 001-11038 |
Entity Registrant Name | NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION |
Entity Central Index Key | 0000875582 |
Entity Tax Identification Number | 41-0857886 |
Entity Incorporation, State or Country Code | DE |
Entity Address, Address Line One | 4201 Woodland Road |
Entity Address, Address Line Two | P.O. Box 69 |
Entity Address, City or Town | Circle Pines |
Entity Address, State or Province | MN |
Entity Address, Postal Zip Code | 55014 |
City Area Code | (763) |
Local Phone Number | 225-6600 |
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 $0.02 per share |
Trading Symbol | NTIC |
Security Exchange Name | NASDAQ |
Entity Emerging Growth Company | false |