Document and Entity Information (USD $)	12 Months Ended
	Sep. 30, 2014	Nov. 30, 2014	Mar. 31, 2014
Document and Entity Information
Entity Registrant Name	DLH Holdings Corp.
Entity Central Index Key	0000785557
Document Type	10-K
Document Period End Date	Sep. 30, 2014
Amendment Flag	false
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		9,632,396
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	Yes
Entity Public Float			$ 11,328,416