NASDAQ STAFF DEFICIENCY LETTER (Details) (USD $)	0 Months Ended
May 03, 2013
Nasdaq Noncompliance [Abstract]
Number of consecutive business ays of noncompliance with listing rule (days)	30 days
Listing rule minimum share price requirement (dollars per share)	$ 1.00
Listing rule compliance grace period (days)	180 days

This element represents the grace period granted by a stock exchange, (i.e. NASDAQ, NYSE, etc.) granted to allow a reporting entity to satisfy a requirement necessary to be listed with the specific stock exchange.

No definition available.

Name:	dlhc_ListingRuleComplianceGracePeriod
Namespace Prefix:	dlhc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration