Retirement Plans (Details Textual) - USD ($)	12 Months Ended
Sep. 30, 2017	Sep. 30, 2016
Retirement Plans [Line Items]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 187,000	$ 179,000

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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Data Type:	xbrli:stringItemType
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Period Type:	duration