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RETIREMENT PLANS - FAIR VALUE (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Sep. 30, 2019
--- | --- | ---
Pension plan assets at the fair value |  |
Fair value measurements | $ 11,051 | $ 10,192
Quoted Prices in Active Markets (Level 1) |  |
Pension plan assets at the fair value |  |
Fair value measurements | $ 11,051 | $ 10,192
Cash and other |  |
Entity's year-end target allocation, by asset category, and the actual asset allocations |  |
Actual asset allocation | 0.00% | 0.00%
Cash and other | Maximum |  |
Entity's year-end target allocation, by asset category, and the actual asset allocations |  |
Target allocation | 15.00% |
Cash and other | Minimum |  |
Entity's year-end target allocation, by asset category, and the actual asset allocations |  |
Target allocation | 0.00% |
Fixed income securities |  |
Entity's year-end target allocation, by asset category, and the actual asset allocations |  |
Actual asset allocation | 52.00% | 38.00%
Fixed income securities | Maximum |  |
Entity's year-end target allocation, by asset category, and the actual asset allocations |  |
Target allocation | 55.00% |
Fixed income securities | Minimum |  |
Entity's year-end target allocation, by asset category, and the actual asset allocations |  |
Target allocation | 25.00% |
Equity securities |  |
Entity's year-end target allocation, by asset category, and the actual asset allocations |  |
Actual asset allocation | 48.00% | 62.00%
Equity securities | Maximum |  |
Entity's year-end target allocation, by asset category, and the actual asset allocations |  |
Target allocation | 60.00% |
Equity securities | Minimum |  |
Entity's year-end target allocation, by asset category, and the actual asset allocations |  |
Target allocation | 40.00% |
Cash |  |
Pension plan assets at the fair value |  |
Fair value measurements |  | $ 4
Cash | Quoted Prices in Active Markets (Level 1) |  |
Pension plan assets at the fair value |  |
Fair value measurements |  | 4
Corporate bonds |  |
Pension plan assets at the fair value |  |
Fair value measurements | $ 1 | 1
Corporate bonds | Quoted Prices in Active Markets (Level 1) |  |
Pension plan assets at the fair value |  |
Fair value measurements | 1 | 1
Fixed income exchange-traded funds |  |
Pension plan assets at the fair value |  |
Fair value measurements | 5,762 | 3,859
Fixed income exchange-traded funds | Quoted Prices in Active Markets (Level 1) |  |
Pension plan assets at the fair value |  |
Fair value measurements | 5,762 | 3,859
Equity securities exchange-traded funds |  |
Pension plan assets at the fair value |  |
Fair value measurements | 352 | 547
Equity securities exchange-traded funds | Quoted Prices in Active Markets (Level 1) |  |
Pension plan assets at the fair value |  |
Fair value measurements | 352 | 547
Equities |  |
Pension plan assets at the fair value |  |
Fair value measurements | 4,936 | 5,781
Equities | Quoted Prices in Active Markets (Level 1) |  |
Pension plan assets at the fair value |  |
Fair value measurements | $ 4,936 | $ 5,781

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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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