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PENSION PLAN (Schedule of Fair Value Measurements of Plan Assets) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Investments | $ 4,871 | $ 3,579
Large-Cap Value [Member] |  |
Investments | 749 | 468
Large-Cap Core [Member] |  |
Investments | 749 | 576
Mid-Cap Core [Member] |  |
Investments | 506 | 220
Small-Cap Core [Member] |  |
Investments | 481 | 196
Non-U.S. Core [Member] |  |
Investments | 838 | 833
Intermediate-Term Core [Member] |  |
Investments | 665 | 1,241
Short- Duration Corporate [Member] |  |
Investments | 853 |
Money Market Funds [Member] |  |
Investments | 30 | 45
Fair Value, Inputs, Level 1 [Member] |  |
Investments | 4,871 | 3,579
Fair Value, Inputs, Level 1 [Member] | Large-Cap Value [Member] |  |
Investments | 749 | 468
Fair Value, Inputs, Level 1 [Member] | Large-Cap Core [Member] |  |
Investments | 749 | 576
Fair Value, Inputs, Level 1 [Member] | Mid-Cap Core [Member] |  |
Investments | 506 | 220
Fair Value, Inputs, Level 1 [Member] | Small-Cap Core [Member] |  |
Investments | 481 | 196
Fair Value, Inputs, Level 1 [Member] | Non-U.S. Core [Member] |  |
Investments | 838 | 833
Fair Value, Inputs, Level 1 [Member] | Intermediate-Term Core [Member] |  |
Investments | 665 | 1,241
Fair Value, Inputs, Level 1 [Member] | Short- Duration Corporate [Member] |  |
Investments | 853 |
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member] |  |
Investments | 30 | 45
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] | Short- Duration Corporate [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] | Short- Duration Corporate [Member] |  |
Investments |  |
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member] |  |
Investments |  |

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