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PENSION PLAN (Schedule of Fair Value Measurements of Plan Assets) (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Sep. 30, 2016
--- | --- | ---
Investments | $ 3,237 | $ 2,951
Large-Cap Value [Member] |  |
Investments | 462 | 400
Large-Cap Core [Member] |  |
Investments | 482 | 414
Mid-Cap Core [Member] |  |
Investments | 224 | 198
Small-Cap Core [Member] |  |
Investments | 222 | 193
Non-U.S. Core [Member] |  |
Investments | 803 | 686
Intermediate-Term Core [Member] |  |
Investments | 1,033 | 1,055
Money Market Funds [Member] |  |
Investments | 11 | 5
Fair Value, Inputs, Level 1 [Member] |  |
Investments | 3,237 | 2,951
Fair Value, Inputs, Level 1 [Member] | Large-Cap Value [Member] |  |
Investments | 462 | 400
Fair Value, Inputs, Level 1 [Member] | Large-Cap Core [Member] |  |
Investments | 482 | 414
Fair Value, Inputs, Level 1 [Member] | Mid-Cap Core [Member] |  |
Investments | 224 | 198
Fair Value, Inputs, Level 1 [Member] | Small-Cap Core [Member] |  |
Investments | 222 | 193
Fair Value, Inputs, Level 1 [Member] | Non-U.S. Core [Member] |  |
Investments | 803 | 686
Fair Value, Inputs, Level 1 [Member] | Intermediate-Term Core [Member] |  |
Investments | 1,033 | 1,055
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member] |  |
Investments | 11 | 5
Fair Value, Inputs, Level 2 [Member] |  |
Investments |  |
Fair Value, Inputs, Level 2 [Member] | Large-Cap Value [Member] |  |
Investments |  |
Fair Value, Inputs, Level 2 [Member] | Large-Cap Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 2 [Member] | Mid-Cap Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 2 [Member] | Small-Cap Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 2 [Member] | Non-U.S. Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 2 [Member] | Intermediate-Term Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member] |  |
Investments |  |
Fair Value, Inputs, Level 3 [Member] |  |
Investments |  |
Fair Value, Inputs, Level 3 [Member] | Large-Cap Value [Member] |  |
Investments |  |
Fair Value, Inputs, Level 3 [Member] | Large-Cap Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 3 [Member] | Mid-Cap Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 3 [Member] | Small-Cap Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 3 [Member] | Non-U.S. Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 3 [Member] | Intermediate-Term Core [Member] |  |
Investments |  |
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member] |  |
Investments |  |

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- Definition Sum of the carrying amounts as of the balance sheet date of all investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(h)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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