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INCOME TAXES (Details) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
INCOME TAXES (Details) [Line Items] |  |  |
Income Tax Benefits Reflected Reversal Of Previously Recorded Tax Liabilities | $ (2,172,000) | $ (517,000) | $ (4,429,000)
Valuation allowance increase (decrease) | 2,370,000 |  |
Undistributed Earnings of Foreign Subsidiaries | $ 77,085,000 |  |
Operating Loss Carryforwards Expiration Year | 2036 |  |
Tax Credit Carryforward Expiration Year | 2020 |  |
Potential Tax Benefits Impact On Effective Tax Rate | $ 1,438,000 |  |
Liability for Uncertain Tax Positions, Current | 362,000 | 655,000 |
Non U S Tax Purposes [Member] |  |  |
INCOME TAXES (Details) [Line Items] |  |  |
Operating Loss Carryforwards | 93,548,000 | 68,591,000 |
State and Local Jurisdiction [Member] |  |  |
INCOME TAXES (Details) [Line Items] |  |  |
Operating Loss Carryforwards | 104,254,000 | 99,094,000 |
Federal [Member] |  |  |
INCOME TAXES (Details) [Line Items] |  |  |
Operating Loss Carryforwards | 0 |  |
Foreign Tax Authority [Member] |  |  |
INCOME TAXES (Details) [Line Items] |  |  |
Operating Loss Carryforwards | $ 3,199,000 | 6,223,000 |
New Accounting Pronouncement, Early Adoption, Effect [Member] | Accounting Standards Update 2015-17 [Member] |  |  |
INCOME TAXES (Details) [Line Items] |  |  |
Deferred tax assets, noncurrent |  | (3,793,000) |
Deferred tax liabilities, noncurrent |  | $ (14,827,000) |

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