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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2018 | Oct. 01, 2017
Operating Loss Carryforwards [Line Items] |  |
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount | $ 32,500 |
Current Fiscal Year End Date | --09-30 |
State net operating loss carryforwards | $ 43,500 |
Valuation allowance | $ 3,554 | $ 8,507
Maximum [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Expiration Date | Jan. 01, 2037 |

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