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Securities and Equity Investments (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Sep. 30, 2018
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Investments, Debt and Equity Securities [Abstract] |  |
Carrying value | $ 408 | $ 558

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- Definition Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration