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Document And Entity Information
Dec. 12, 2025
Document Information [Line Items]  
Entity, Registrant Name PERMA-PIPE INTERNATIONAL HOLDINGS, INC.
Document, Type 8-K
Document, Period End Date Dec. 12, 2025
Entity, Incorporation, State or Country Code DE
Entity, File Number 001-32530
Entity, Tax Identification Number 36-3922969
Entity, Address, Address Line One 2445 Technology Forest Blvd, Suite 1010
Entity, Address, City or Town The Woodlands
Entity, Address, State or Province TX
Entity, Address, Postal Zip Code 77381
City Area Code 847
Local Phone Number 966-1000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $.01 par value per share
Trading Symbol PPIH
Security Exchange Name NASDAQ
Entity, Emerging Growth Company false
Amendment Flag false
Entity, Central Index Key 0000914122