v3.22.2.2
Document And Entity Information
Aug. 30, 2022
Document Information [Line Items]  
Entity, Registrant Name Insteel Industries, Inc.
Document, Type 8-K
Document, Period End Date Aug. 30, 2022
Entity, Incorporation, State or Country Code NC
Entity, File Number 1-9929
Entity, Tax Identification Number 56-0674867
Entity, Address, Address Line One 1373 Boggs Drive
Entity, Address, City or Town Mount Airy
Entity, Address, State or Province NC
Entity, Address, Postal Zip Code 27030
City Area Code 336
Local Phone Number 786-2141
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock
Trading Symbol IIIN
Security Exchange Name NYSE
Entity, Emerging Growth Company false
Amendment Flag false
Entity, Central Index Key 0000764401