    <SEC-DOCUMENT>0000950170-25-081407-index.html : 20250604
    <SEC-HEADER>0000950170-25-081407.hdr.sgml : 20250604
    <ACCEPTANCE-DATETIME>20250604085908
    ACCESSION NUMBER:		0000950170-25-081407
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		22
    CONFORMED PERIOD OF REPORT:	20250604
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20250604
    DATE AS OF CHANGE:		20250604

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			NEOGEN CORP
    		CENTRAL INDEX KEY:			0000711377
    		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
    		ORGANIZATION NAME:           	03 Life Sciences
    		EIN:				382367843
    		STATE OF INCORPORATION:			MI
    		FISCAL YEAR END:			0531

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-17988
    		FILM NUMBER:		251022060

    	BUSINESS ADDRESS:
    		STREET 1:		620 LESHER PLACE
    		CITY:			LANSING
    		STATE:			MI
    		ZIP:			48912
    		BUSINESS PHONE:		5173729200

    	MAIL ADDRESS:
    		STREET 1:		620 LESHER PLACE
    		CITY:			LANSING
    		STATE:			MI
    		ZIP:			48912
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>neog-20250604.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: neog-20250604.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>neog-ex99_1.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: neog-ex99_1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>neog-ex99_1s1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: neog-ex99_1s1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>neog-ex99_1s2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: neog-ex99_1s2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>neog-ex99_1s3.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: neog-ex99_1s3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>neog-ex99_1s4.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: neog-ex99_1s4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>neog-ex99_1s5.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: neog-ex99_1s5.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>neog-ex99_1s6.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: neog-ex99_1s6.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>neog-ex99_1s7.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: neog-ex99_1s7.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>neog-ex99_1s8.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: neog-ex99_1s8.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>neog-ex99_1s9.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: neog-ex99_1s9.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>neog-ex99_1s10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: neog-ex99_1s10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>neog-ex99_1s11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: neog-ex99_1s11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>14
    <FILENAME>neog-20250604.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT
    <TEXT>
    Document 14 - file: neog-20250604.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>16
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 16 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>17
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 17 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>18
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 18 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>20
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 20 - file: FilingSummary.html

    Document 20 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>22
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 22 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>23
    <FILENAME>0000950170-25-081407-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 23 - file: 0000950170-25-081407-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>24
    <FILENAME>neog-20250604_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 24 - file: neog-20250604_htm.html

    Document 24 - RAW XML: neog-20250604_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>