| **Employee Benefit Plans**                            | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
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| **Compensation and Retirement Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Employee Benefits Plans                               | Employee Benefit PlansAs of September 30, 2014, DLH and its subsidiaries maintain the DLH 401(k) Plan (the "401(k) Plan") , a defined contribution and supplemental pension plan for the benefit of its eligible employees. DLH may provide a discretionary matching contribution of 25% of each of the first 4% of a participant's elective contributions under the 401 (k) Plan. DLH recorded related expense of $5 in fiscal 2014 and $93 in fiscal year 2013. A participant is always fully vested in his or her elective contributions and vests in Company matching contributions over a 4 year period. |

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| - Definition
The entire disclosure for pension and other postretirement benefits.
+ References
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