Employee Retirement Plan (Details Textual) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2015 |
Sep. 30, 2014 |
Sep. 30, 2013 |
|
| Employee Retirement Plan [Line Items] | |||
| Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 3.00% | ||
| Defined Benefit Plan, Contributions by Employer | $ 94,000 | $ 83,000 | $ 64,000 |