Income Taxes (Details) - USD ($) $ in Thousands  | 
3 Months Ended | |
|---|---|---|
Dec. 31, 2019  | 
Dec. 31, 2018  | 
|
| Income Taxes | ||
| Provision for Income Taxes | $ 171 | $ 523 | 
| Effective Tax Rate | (4.00%) | (17.00%) | 
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- References No definition available. 
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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