    <SEC-DOCUMENT>0000785557-25-000141-index.html : 20251002
    <SEC-HEADER>0000785557-25-000141.hdr.sgml : 20251002
    <ACCEPTANCE-DATETIME>20251002165950
    ACCESSION NUMBER:		0000785557-25-000141
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		34
    CONFORMED PERIOD OF REPORT:	20250926
    ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20251002
    DATE AS OF CHANGE:		20251002

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			DLH Holdings Corp.
    		CENTRAL INDEX KEY:			0000785557
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-HELP SUPPLY SERVICES [7363]
    		ORGANIZATION NAME:           	07 Trade & Services
    		EIN:				221899798
    		STATE OF INCORPORATION:			NJ
    		FISCAL YEAR END:			0930

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-18492
    		FILM NUMBER:		251370335

    	BUSINESS ADDRESS:
    		STREET 1:		3565 PIEDMONT ROAD, NE
    		STREET 2:		BUILDING 3, SUITE 700
    		CITY:			ATLANTA
    		STATE:			GA
    		ZIP:			30305
    		BUSINESS PHONE:		8669521647

    	MAIL ADDRESS:
    		STREET 1:		3565 PIEDMONT ROAD, NE
    		STREET 2:		BUILDING 3, SUITE 700
    		CITY:			ATLANTA
    		STATE:			GA
    		ZIP:			30305

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	TEAMSTAFF INC
    		DATE OF NAME CHANGE:	19990216

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	DIGITAL SOLUTIONS INC
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>dlhc-20250926.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: dlhc-20250926.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>exhibit101.htm
    <DESCRIPTION>EX-10.1
    <TEXT>
    Document 2 - file: exhibit101.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>3
    <FILENAME>dlhc-20250926.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 3 - file: dlhc-20250926.xsd

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    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>4
    <FILENAME>dlhc-20250926_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 4 - file: dlhc-20250926_lab.xml

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    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>5
    <FILENAME>dlhc-20250926_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: dlhc-20250926_pre.xml

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>exhibit101001.jpg
    <TEXT>
    Document 6 - file: exhibit101001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>exhibit101002.jpg
    <TEXT>
    Document 7 - file: exhibit101002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>exhibit101003.jpg
    <TEXT>
    Document 8 - file: exhibit101003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>exhibit101004.jpg
    <TEXT>
    Document 9 - file: exhibit101004.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>exhibit101005.jpg
    <TEXT>
    Document 10 - file: exhibit101005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>exhibit101006.jpg
    <TEXT>
    Document 11 - file: exhibit101006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>exhibit101007.jpg
    <TEXT>
    Document 12 - file: exhibit101007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>exhibit101008.jpg
    <TEXT>
    Document 13 - file: exhibit101008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>exhibit101009.jpg
    <TEXT>
    Document 14 - file: exhibit101009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>exhibit101010.jpg
    <TEXT>
    Document 15 - file: exhibit101010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>exhibit101011.jpg
    <TEXT>
    Document 16 - file: exhibit101011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>exhibit101012.jpg
    <TEXT>
    Document 17 - file: exhibit101012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>exhibit101013.jpg
    <TEXT>
    Document 18 - file: exhibit101013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>exhibit101014.jpg
    <TEXT>
    Document 19 - file: exhibit101014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>exhibit101015.jpg
    <TEXT>
    Document 20 - file: exhibit101015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>exhibit101016.jpg
    <TEXT>
    Document 21 - file: exhibit101016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>exhibit101017.jpg
    <TEXT>
    Document 22 - file: exhibit101017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>exhibit101018.jpg
    <TEXT>
    Document 23 - file: exhibit101018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>exhibit101019.jpg
    <TEXT>
    Document 24 - file: exhibit101019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>exhibit101020.jpg
    <TEXT>
    Document 25 - file: exhibit101020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>exhibit101021.jpg
    <TEXT>
    Document 26 - file: exhibit101021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>28
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 28 - file: R1.htm

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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>29
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 29 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>30
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 30 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>32
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 32 - file: FilingSummary.html

    Document 32 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>34
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 34 - file: MetaLinks.json

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    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>35
    <FILENAME>0000785557-25-000141-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 35 - file: 0000785557-25-000141-xbrl.zip

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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>36
    <FILENAME>dlhc-20250926_htm.xml
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    <TEXT>
    Document 36 - file: dlhc-20250926_htm.html

    Document 36 - RAW XML: dlhc-20250926_htm.xml

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