    <SEC-DOCUMENT>0001437749-21-009119-index.html : 20210416
    <SEC-HEADER>0001437749-21-009119.hdr.sgml : 20210416
    <ACCEPTANCE-DATETIME>20210416150419
    ACCESSION NUMBER:		0001437749-21-009119
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		4
    CONFORMED PERIOD OF REPORT:	20210416
    FILED AS OF DATE:		20210416
    DATE AS OF CHANGE:		20210416

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Perma-Pipe International Holdings, Inc.
    		CENTRAL INDEX KEY:			0000914122
    		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFYING EQUIP [3564]
    		IRS NUMBER:				363922969
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			0131

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-32530
    		FILM NUMBER:		21831239

    	BUSINESS ADDRESS:
    		STREET 1:		6410 WEST HOWARD STREET
    		CITY:			NILES
    		STATE:			IL
    		ZIP:			60714
    		BUSINESS PHONE:		8479661000

    	MAIL ADDRESS:
    		STREET 1:		6410 WEST HOWARD STREET
    		CITY:			NILES
    		STATE:			IL
    		ZIP:			60714

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MFRI INC
    		DATE OF NAME CHANGE:	19970402

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MIDWESCO FILTER RESOURCES INC
    		DATE OF NAME CHANGE:	19970402
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>ppih20210127_def14a.htm
    <DESCRIPTION>FORM DEF 14A
    <TEXT>
    Document 1 - file: ppih20210127_def14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>a01.jpg
    <TEXT>
    Document 2 - file: a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>a02.jpg
    <TEXT>
    Document 3 - file: a02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>logo10q.jpg
    <TEXT>
    Document 4 - file: logo10q.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>