XML 19 R1.htm IDEA: XBRL DOCUMENT v3.25.1
Document And Entity Information - USD ($)
 12 Months Ended
Jan. 31, 2025
Apr. 21, 2025
Jul. 31, 2024
Document Information [Line Items]      
Entity Central Index Key 0000914122    
Entity Registrant Name Perma-Pipe International Holdings, Inc.    
Amendment Flag false    
Current Fiscal Year End Date --01-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jan. 31, 2025    
Document Transition Report false    
Entity File Number 001-32530    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 36-3922969    
Entity Address, Address Line One 25025 I-45, Suite 200    
Entity Address, City or Town The Woodlands    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 77380    
City Area Code 281    
Local Phone Number 598-6222    
Title of 12(b) Security Common Stock, $.01 par value per share    
Trading Symbol PPIH    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 71,626,601
Entity Common Stock, Shares Outstanding   7,982,568  
Auditor Name PricewaterhouseCoopers LLP    
Auditor Location Houston, Texas    
Auditor Firm ID 238