| **EMPLOYEE BENEFIT PLANS:**                           | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
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| **Compensation and Retirement Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| EMPLOYEE BENEFIT PLANS:                               | EMPLOYEE BENEFIT PLANS:As of September 30, 2013, DLH and its subsidiaries maintain a defined contribution and a supplemental pension plan.As of January 1, 2004, DLH adopted the DLH 401(k) Plan (the "401(k) 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 $93 in fiscal 2013 and $54 in fiscal year 2012. 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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