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BASIS OF PRESENTATION (Recent Accounting Pronouncements) (Narrative) (Details) - USD ($) $ in Thousands | Dec. 30, 2017 | Sep. 30, 2017
--- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Restricted Cash and Investments, Current | $ 528 | $ 530
Accounting Standards Update 2016-09, Excess Tax Benefit Component [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Capital | 1,400 |
Deferred tax assets | 5,400 |
Retained Earnings [Member] | Accounting Standards Update 2016-09, Excess Tax Benefit Component [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Cumulative effect of new accounting principle in period of adoption | $ 1,400 |

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