Employee Benefit Plan (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2015 |
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| United States Postretirement Benefit Plan of US Entity [Member] | |||
| Defined Contribution Plan [Line Items] | |||
| Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount (in Dollars) | $ 15,500 | ||
| Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 100.00% | ||
| Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 3.00% | ||
| Defined Benefit Plan, Contributions by Employer (in Dollars) | $ 73,000 | $ 33,000 | $ 37,000 |
| Foreign Postretirement Benefit Plan [Member] | |||
| Defined Contribution Plan [Line Items] | |||
| Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 3.00% | ||
| Defined Benefit Plan, Contributions by Employer (in Dollars) | $ 22,000 | $ 23,000 | $ 26,000 |
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
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- Definition Maximum amount the employee may contribute to a defined contribution plan. No definition available.
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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